{"id":2874,"date":"2024-11-28T15:45:07","date_gmt":"2024-11-28T14:45:07","guid":{"rendered":"https:\/\/www.quisted.net\/?p=2874"},"modified":"2024-11-29T21:59:53","modified_gmt":"2024-11-29T20:59:53","slug":"is-is-redistribution-and-route-summarization","status":"publish","type":"post","link":"https:\/\/www.quisted.net\/index.php\/2024\/11\/28\/is-is-redistribution-and-route-summarization\/","title":{"rendered":"IS-IS Redistribution and Route Summarization"},"content":{"rendered":"\n<figure class=\"wp-block-image size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-2875 size-full\" style=\"width: 840px; height: auto;\" src=\"https:\/\/www.quisted.net\/wp-content\/uploads\/2024\/11\/Header2-1.png\" alt=\"\" width=\"1019\" height=\"400\" srcset=\"https:\/\/www.quisted.net\/wp-content\/uploads\/2024\/11\/Header2-1.png 1019w, https:\/\/www.quisted.net\/wp-content\/uploads\/2024\/11\/Header2-1-300x118.png 300w, https:\/\/www.quisted.net\/wp-content\/uploads\/2024\/11\/Header2-1-768x301.png 768w\" sizes=\"auto, (max-width: 1019px) 100vw, 1019px\" \/><\/figure>\n<p>&nbsp;<\/p>\n\n\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_80 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.quisted.net\/index.php\/2024\/11\/28\/is-is-redistribution-and-route-summarization\/#Intermediate_System_to_Intermediate_System_IS-IS\" >Intermediate System to Intermediate System (IS-IS)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.quisted.net\/index.php\/2024\/11\/28\/is-is-redistribution-and-route-summarization\/#IS-IS_Lab_Setup\" >IS-IS Lab Setup<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.quisted.net\/index.php\/2024\/11\/28\/is-is-redistribution-and-route-summarization\/#Labs_download\" >Labs download<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.quisted.net\/index.php\/2024\/11\/28\/is-is-redistribution-and-route-summarization\/#Router_Configurations\" >Router Configurations<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.quisted.net\/index.php\/2024\/11\/28\/is-is-redistribution-and-route-summarization\/#Configuration_L2_Routers_R1_R2\" >Configuration L2 Routers (R1 &amp; R2)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.quisted.net\/index.php\/2024\/11\/28\/is-is-redistribution-and-route-summarization\/#Configuration_L1L2_Routers_R6_R6\" >Configuration L1\/L2 Routers (R6 &amp; R6)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.quisted.net\/index.php\/2024\/11\/28\/is-is-redistribution-and-route-summarization\/#Configuration_L1_Routers_R9_R10\" >Configuration L1 Routers (R9 &amp; R10)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.quisted.net\/index.php\/2024\/11\/28\/is-is-redistribution-and-route-summarization\/#Configuration_OSPF_Router_R11\" >Configuration OSPF Router (R11)<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.quisted.net\/index.php\/2024\/11\/28\/is-is-redistribution-and-route-summarization\/#Router_Verifications\" >Router Verifications<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.quisted.net\/index.php\/2024\/11\/28\/is-is-redistribution-and-route-summarization\/#Verification_L2_Routers_R1_R2\" >Verification L2 Routers (R1 &amp; R2)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/www.quisted.net\/index.php\/2024\/11\/28\/is-is-redistribution-and-route-summarization\/#Verification_L1L2_Routers_R5_R6\" >Verification L1\/L2 Routers (R5 &amp; R6)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/www.quisted.net\/index.php\/2024\/11\/28\/is-is-redistribution-and-route-summarization\/#Verification_L1_Routers_R9_R10\" >Verification L1 Routers (R9 &amp; R10)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/www.quisted.net\/index.php\/2024\/11\/28\/is-is-redistribution-and-route-summarization\/#Verification_OSPF_Router_R11\" >Verification OSPF Router (R11)<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/www.quisted.net\/index.php\/2024\/11\/28\/is-is-redistribution-and-route-summarization\/#IS-IS_Redistribution\" >IS-IS Redistribution<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/www.quisted.net\/index.php\/2024\/11\/28\/is-is-redistribution-and-route-summarization\/#Redistribution_into_IS-IS_Level-1\" >Redistribution into IS-IS Level-1<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/www.quisted.net\/index.php\/2024\/11\/28\/is-is-redistribution-and-route-summarization\/#Redistribution_into_IS-IS_Level-2\" >Redistribution into IS-IS Level-2<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/www.quisted.net\/index.php\/2024\/11\/28\/is-is-redistribution-and-route-summarization\/#Redistribution_into_IS-IS_Level-1-2\" >Redistribution into IS-IS Level-1-2<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/www.quisted.net\/index.php\/2024\/11\/28\/is-is-redistribution-and-route-summarization\/#IS-IS_Path_Selection\" >IS-IS Path Selection<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-19\" href=\"https:\/\/www.quisted.net\/index.php\/2024\/11\/28\/is-is-redistribution-and-route-summarization\/#IS-IS_Route_Summarization\" >IS-IS Route Summarization<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-20\" href=\"https:\/\/www.quisted.net\/index.php\/2024\/11\/28\/is-is-redistribution-and-route-summarization\/#IS-IS_Summarization_locations\" >IS-IS Summarization locations<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-21\" href=\"https:\/\/www.quisted.net\/index.php\/2024\/11\/28\/is-is-redistribution-and-route-summarization\/#Option_1_Summarize_Routes_Leaked_from_L1_into_L2\" >Option 1: Summarize Routes Leaked from L1 into L2<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-22\" href=\"https:\/\/www.quisted.net\/index.php\/2024\/11\/28\/is-is-redistribution-and-route-summarization\/#Option_2_Summarize_Routes_Leaked_from_L2_into_L1\" >Option 2: Summarize Routes Leaked from L2 into L1<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-23\" href=\"https:\/\/www.quisted.net\/index.php\/2024\/11\/28\/is-is-redistribution-and-route-summarization\/#Option_3_Summarize_Imported_Routes\" >Option 3: Summarize Imported Routes<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-24\" href=\"https:\/\/www.quisted.net\/index.php\/2024\/11\/28\/is-is-redistribution-and-route-summarization\/#IS-IS_Summarization_configuration\" >IS-IS Summarization configuration<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-25\" href=\"https:\/\/www.quisted.net\/index.php\/2024\/11\/28\/is-is-redistribution-and-route-summarization\/#IS-IS_Summarization_verification\" >IS-IS Summarization verification<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n\n\n\n\n<h2><span class=\"ez-toc-section\" id=\"Intermediate_System_to_Intermediate_System_IS-IS\"><\/span><span style=\"color: #800080;\">Intermediate System to Intermediate System (IS-IS)<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<hr \/>\n<p><em>Intermediate System to Intermediate System<\/em> (IS-IS) is a dynamic link-state routing protocol widely used in large-scale networks, especially in service provider environments. In this post I will look at the following IS-IS configurations;<\/p>\n<ul>\n<li><strong>Redistribution <\/strong>of\u00a0OSPF into IS-IS, and the differences between L1 and L2.<\/li>\n<li>IS-IS <strong>Path selection<\/strong> when L1 and L2 routes are available.<\/li>\n<li><em>How<\/em> and <em>where <\/em>to apply IS-IS <strong>Route Summarization.<\/strong><\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"IS-IS_Lab_Setup\"><\/span><span style=\"color: #800080;\"><a id=\"mplste02\"><\/a>IS-IS Lab Setup<br \/><\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<hr \/>\n<p>\u00a0<\/p>\n<table style=\"width: 100%; border-collapse: collapse; background-color: #fafafa; height: 183px;\">\n<tbody>\n<tr style=\"height: 183px;\">\n<td style=\"width: 100%; height: 183px;\">\n<h3><span class=\"ez-toc-section\" id=\"Labs_download\"><\/span>Labs download<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<h3><a href=\"https:\/\/drive.google.com\/drive\/folders\/1KekNqcw3eApsFjwkR9d4twTuqqEfn2Eb?usp=sharing\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"alignleft wp-image-1794\" src=\"https:\/\/www.quisted.net\/wp-content\/uploads\/2024\/10\/Lab-Icon.png\" alt=\"\" width=\"107\" height=\"92\" srcset=\"https:\/\/www.quisted.net\/wp-content\/uploads\/2024\/10\/Lab-Icon.png 398w, https:\/\/www.quisted.net\/wp-content\/uploads\/2024\/10\/Lab-Icon-300x258.png 300w\" sizes=\"auto, (max-width: 107px) 100vw, 107px\" \/><\/a><\/h3>\n<p><span style=\"font-size: revert; color: initial;\">The CML Lab is available for download <a href=\"https:\/\/drive.google.com\/drive\/folders\/1KekNqcw3eApsFjwkR9d4twTuqqEfn2Eb?usp=sharing\">here<\/a>.<br \/><br \/><\/span><span style=\"font-size: revert; color: initial;\">1 &#8211; Lab <b>IS-IS Route Redistribution and Summarization<\/b><br \/><\/span><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Using Cisco\u2019s Modeling Labs (CML) I build the following IS-IS and OSPF topology:<\/p>\n<ul>\n<li>2 x <span style=\"color: #76608a;\"><strong>L2 Router ( Top )\u00a0<\/strong><\/span> (R1, R2) running <strong>XRv<\/strong> with <strong>IOS-XR.<\/strong><\/li>\n<li>2 x<strong><span style=\"color: #6a00ff;\"> L1L2 Router ( left )<\/span><\/strong> (R3, R4) running <strong>XRv<\/strong> with <strong>IOS-XR.<\/strong><\/li>\n<li>2 x<strong><span style=\"color: #6a00ff;\"> L1 Router ( left )<\/span><\/strong> (R7, R8) running <strong>IOS<\/strong> with <strong>IOSv.<\/strong><\/li>\n<li>2 x<span style=\"color: #d80073;\"><strong> L1L2 Router ( Center )<\/strong><\/span> (R5, R6) running <strong>XRv<\/strong> with <strong>IOS-XR.<\/strong><\/li>\n<li>2 x<span style=\"color: #d80073;\"><strong> L1 Router ( Center )<\/strong><\/span> (R9, R10) running <strong>IOS<\/strong> with <strong>IOSv.<\/strong><\/li>\n<li>1 x<span style=\"color: #1ba1e2;\"><strong> OSPF Router<\/strong><\/span> (R11) running <strong>IOS<\/strong> with <strong>IOSv.<\/strong><\/li>\n<\/ul>\n<p><strong><em>Logical View:<\/em><\/strong><\/p>\n<p><a href=\"https:\/\/www.quisted.net\/wp-content\/uploads\/2024\/11\/Topology-3.png\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-2902 size-full\" src=\"https:\/\/www.quisted.net\/wp-content\/uploads\/2024\/11\/Topology-3.png\" alt=\"\" width=\"867\" height=\"569\" srcset=\"https:\/\/www.quisted.net\/wp-content\/uploads\/2024\/11\/Topology-3.png 867w, https:\/\/www.quisted.net\/wp-content\/uploads\/2024\/11\/Topology-3-300x197.png 300w, https:\/\/www.quisted.net\/wp-content\/uploads\/2024\/11\/Topology-3-768x504.png 768w\" sizes=\"auto, (max-width: 867px) 100vw, 867px\" \/><\/a><\/p>\n<p><strong><em>Physical View:<\/em><\/strong><\/p>\n<p><a href=\"https:\/\/www.quisted.net\/wp-content\/uploads\/2024\/11\/physical-2.png\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-2900 size-full alignnone\" src=\"https:\/\/www.quisted.net\/wp-content\/uploads\/2024\/11\/physical-2.png\" alt=\"\" width=\"1644\" height=\"967\" srcset=\"https:\/\/www.quisted.net\/wp-content\/uploads\/2024\/11\/physical-2.png 1644w, https:\/\/www.quisted.net\/wp-content\/uploads\/2024\/11\/physical-2-300x176.png 300w, https:\/\/www.quisted.net\/wp-content\/uploads\/2024\/11\/physical-2-1024x602.png 1024w, https:\/\/www.quisted.net\/wp-content\/uploads\/2024\/11\/physical-2-768x452.png 768w, https:\/\/www.quisted.net\/wp-content\/uploads\/2024\/11\/physical-2-1536x903.png 1536w\" sizes=\"auto, (max-width: 1644px) 100vw, 1644px\" \/><\/a><\/p>\n<p><!--more--><\/p>\n<p><em><strong><br \/><\/strong><\/em><strong><span style=\"color: #000000;\"><em>IP Addressing:<\/em><\/span><\/strong><br \/>The point-to-point links are configured with the following IP addressing scheme:<\/p>\n<ul>\n<li>&#8220;<strong>10.<span style=\"color: #1ba1e2;\">&lt;Lowest Router Id&gt;<\/span>.<span style=\"color: #76608a;\">&lt;Highest Router Id&gt;<\/span>.<span style=\"color: #800080;\"><span style=\"color: #6a00ff;\">&lt;Router Id&gt;.\/24<\/span>.&#8221;<\/span><\/strong><\/li>\n<\/ul>\n<p>For example the link between R1 and R 2 gives on P1: <strong><em>10.<span style=\"color: #1ba1e2;\">1<\/span>.<span style=\"color: #76608a;\">2<\/span>.<span style=\"color: #6a00ff;\">1<\/span>\/24<\/em> <\/strong>and on P2: <em><strong>10.<span style=\"color: #1ba1e2;\">1<\/span>.<span style=\"color: #76608a;\">2<\/span>.<span style=\"color: #3399ff;\">2<\/span>\/24<\/strong>.\u00a0<\/em><\/p>\n\n\n\n<table id=\"tablepress-22\" class=\"tablepress tablepress-id-22\">\n<thead>\n<tr class=\"row-1\">\n\t<th class=\"column-1\">Device<\/th><th class=\"column-2\">Function<\/th><th class=\"column-3\">Loopback address<\/th><th class=\"column-4\">Subnets<\/th><th class=\"column-5\">Image<\/th>\n<\/tr>\n<\/thead>\n<tbody class=\"row-striping row-hover\">\n<tr class=\"row-2\">\n\t<td class=\"column-1\">R1<br \/>\n<\/td><td class=\"column-2\">L2 Router (Backbone)<\/td><td class=\"column-3\">1.1.1.1\/32<\/td><td class=\"column-4\">G0 10.1.3.1\/24<br \/>\nG1 10.1.5.1\/24<br \/>\nG5 10.1.2.1\/24<\/td><td class=\"column-5\">IOS XRV<\/td>\n<\/tr>\n<tr class=\"row-3\">\n\t<td class=\"column-1\">R2<\/td><td class=\"column-2\">L2 Router (Backbone)<\/td><td class=\"column-3\">2.2.2.2\/32<\/td><td class=\"column-4\">G0 10.2.4.2\/24<br \/>\nG1 10.2.6.2\/24<br \/>\nG5 10.1.2.2\/24<\/td><td class=\"column-5\">IOS XRV<\/td>\n<\/tr>\n<tr class=\"row-4\">\n\t<td class=\"column-1\">R3<\/td><td class=\"column-2\">L1\/L2 Router<\/td><td class=\"column-3\">3.3.3.3\/32<\/td><td class=\"column-4\">G0 10.1.3.3\/24<br \/>\nG2 10.3.4.3\/24<br \/>\nG3 10.3.7.3\/24<br \/>\n<\/td><td class=\"column-5\">IOS XRV<\/td>\n<\/tr>\n<tr class=\"row-5\">\n\t<td class=\"column-1\">R4<\/td><td class=\"column-2\">L1\/L2 Router<\/td><td class=\"column-3\">4.4.4.4\/32<\/td><td class=\"column-4\">G0 10.2.4.4\/24<br \/>\nG2 10.3.4.4\/24<br \/>\nG3 10.3.8.4\/24<br \/>\n<\/td><td class=\"column-5\">IOS XRV<\/td>\n<\/tr>\n<tr class=\"row-6\">\n\t<td class=\"column-1\">R5<\/td><td class=\"column-2\">L1\/L2 Router<\/td><td class=\"column-3\">5.5.5.5\/32<\/td><td class=\"column-4\">G0 10.1.5.5\/24<br \/>\nG2 10.5.6.5\/24<br \/>\nG3 10.5.9.5\/24<br \/>\n<\/td><td class=\"column-5\">IOS XRV<\/td>\n<\/tr>\n<tr class=\"row-7\">\n\t<td class=\"column-1\">R6<\/td><td class=\"column-2\">L1\/L2 Router<\/td><td class=\"column-3\">6.6.6.6\/32<\/td><td class=\"column-4\">G0 10.2.6.6\/24<br \/>\nG1 10.6.11.6\/24<br \/>\nG2 10.5.6.6\/24<br \/>\nG3 10.6.10.6\/24<br \/>\n<\/td><td class=\"column-5\">IOS XRV<\/td>\n<\/tr>\n<tr class=\"row-8\">\n\t<td class=\"column-1\">R7<\/td><td class=\"column-2\">L1 Router<\/td><td class=\"column-3\">7.7.7.7\/32<\/td><td class=\"column-4\">G2 10.7.8.7\/24<br \/>\nG3 10.3.7.7\/24<\/td><td class=\"column-5\">IOSv<\/td>\n<\/tr>\n<tr class=\"row-9\">\n\t<td class=\"column-1\">R8<\/td><td class=\"column-2\">L1 Router<\/td><td class=\"column-3\">8.8.8.8\/32<\/td><td class=\"column-4\">G2 10.7.8.8\/24<br \/>\nG3 10.4.8.8\/24<\/td><td class=\"column-5\">IOSv<\/td>\n<\/tr>\n<tr class=\"row-10\">\n\t<td class=\"column-1\">R9<\/td><td class=\"column-2\">L1 Router<\/td><td class=\"column-3\">9.9.9.9\/32<\/td><td class=\"column-4\">G3 10.3.9.9\/24<br \/>\nG2 10.9.10.9\/24<br \/>\n<\/td><td class=\"column-5\">IOSv<\/td>\n<\/tr>\n<tr class=\"row-11\">\n\t<td class=\"column-1\">R10<\/td><td class=\"column-2\">L1 Router<\/td><td class=\"column-3\">10.10.10.10\/32<\/td><td class=\"column-4\">G0 10.10.11.10\/24<br \/>\nG3 10.4.10.10\/24<br \/>\nG2 10.9.10.10\/24<\/td><td class=\"column-5\">IOSv<\/td>\n<\/tr>\n<tr class=\"row-12\">\n\t<td class=\"column-1\">R11<\/td><td class=\"column-2\">OSPF<\/td><td class=\"column-3\">11.11.11.11\/32<\/td><td class=\"column-4\">G3 10.3.11.11\/24<br \/>\nG2 10.11.12.11\/24<\/td><td class=\"column-5\">IOSv<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<!-- #tablepress-22 from cache -->\n\n\n<div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<h2><span class=\"ez-toc-section\" id=\"Router_Configurations\"><\/span><span style=\"color: #800080;\">Router Configurations<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>In this example I will focus on the Top and Right side of the ISIS topology, in combination with the OSPF Router.<\/p>\n<p><a href=\"https:\/\/www.quisted.net\/wp-content\/uploads\/2024\/11\/Focus-1.png\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-2906 size-full\" src=\"https:\/\/www.quisted.net\/wp-content\/uploads\/2024\/11\/Focus-1.png\" alt=\"\" width=\"1644\" height=\"967\" srcset=\"https:\/\/www.quisted.net\/wp-content\/uploads\/2024\/11\/Focus-1.png 1644w, https:\/\/www.quisted.net\/wp-content\/uploads\/2024\/11\/Focus-1-300x176.png 300w, https:\/\/www.quisted.net\/wp-content\/uploads\/2024\/11\/Focus-1-1024x602.png 1024w, https:\/\/www.quisted.net\/wp-content\/uploads\/2024\/11\/Focus-1-768x452.png 768w, https:\/\/www.quisted.net\/wp-content\/uploads\/2024\/11\/Focus-1-1536x903.png 1536w\" sizes=\"auto, (max-width: 1644px) 100vw, 1644px\" \/><\/a><\/p>\n\n\n\n<h3><span class=\"ez-toc-section\" id=\"Configuration_L2_Routers_R1_R2\"><\/span><span style=\"color: #800080;\">Configuration L2 Routers (R1 &amp; R2)<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.75rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;line-height:1rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span role=\"button\" tabindex=\"0\" data-code=\"==== R1 &amp; R2  (L2)\n\nhostname R2\ninterface Loopback0\n ipv4 address 2.2.2.2 255.255.255.255\n!\ninterface GigabitEthernet0\/0\/0\/0\n ipv4 address 10.2.4.2 255.255.255.0\n!\ninterface GigabitEthernet0\/0\/0\/1\n ipv4 address 10.2.6.2 255.255.255.0\n!\ninterface GigabitEthernet0\/0\/0\/5\n ipv4 address 10.1.2.2 255.255.255.0\n!\nrouter isis 1\n is-type level-2-only\n net 49.000.0000.0000.0002.00\n address-family ipv4 unicast\n  metric-style wide\n !\n interface Loopback0\n  circuit-type level-2-only\n  address-family ipv4 unicast\n  !\n !\n interface GigabitEthernet0\/0\/0\/0\n  circuit-type level-2-only\n  address-family ipv4 unicast\n  !\n !\n interface GigabitEthernet0\/0\/0\/1\n  circuit-type level-2-only\n  address-family ipv4 unicast\n  !\n !\n interface GigabitEthernet0\/0\/0\/2\n  circuit-type level-2-only\n  address-family ipv4 unicast\n  !\n !\n interface GigabitEthernet0\/0\/0\/5\n  circuit-type level-2-only\n  address-family ipv4 unicast\n  !\n !\n!\nend\n\n\" style=\"color:#F8F8F2;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M4.5 12.75l6 6 9-13.5\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M16.5 8.25V6a2.25 2.25 0 00-2.25-2.25H6A2.25 2.25 0 003.75 6v8.25A2.25 2.25 0 006 16.5h2.25m8.25-8.25H18a2.25 2.25 0 012.25 2.25V18A2.25 2.25 0 0118 20.25h-7.5A2.25 2.25 0 018.25 18v-1.5m8.25-8.25h-6a2.25 2.25 0 00-2.25 2.25v6\"><\/path><\/svg><\/span><pre class=\"shiki dracula\" style=\"background-color: #282A36\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #FF79C6\">====<\/span><span style=\"color: #F8F8F2\"> R1 &amp; R2  (L2)<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">hostname R2<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">interface Loopback0<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\"> ipv4 address <\/span><span style=\"color: #BD93F9\">2.2<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">2.2<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #BD93F9\">255.255<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">255.255<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">!<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">interface GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\"> ipv4 address <\/span><span style=\"color: #BD93F9\">10.2<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">4.2<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #BD93F9\">255.255<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">255.0<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">!<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">interface GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">1<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\"> ipv4 address <\/span><span style=\"color: #BD93F9\">10.2<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">6.2<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #BD93F9\">255.255<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">255.0<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">!<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">interface GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">5<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\"> ipv4 address <\/span><span style=\"color: #BD93F9\">10.1<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">2.2<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #BD93F9\">255.255<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">255.0<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">!<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">router isis <\/span><span style=\"color: #BD93F9\">1<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #FF79C6\">is-type<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #FF79C6\">level-<\/span><span style=\"color: #BD93F9\">2<\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\">only<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\"> net <\/span><span style=\"color: #BD93F9\">49.000<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">0000.0000<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">0002.00<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\"> address<\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\">family ipv4 unicast<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">  metric<\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\">style wide<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\"> !<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\"> interface Loopback0<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">  circuit<\/span><span style=\"color: #FF79C6\">-type<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #FF79C6\">level-<\/span><span style=\"color: #BD93F9\">2<\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\">only<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">  address<\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\">family ipv4 unicast<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">  !<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\"> !<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\"> interface GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">  circuit<\/span><span style=\"color: #FF79C6\">-type<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #FF79C6\">level-<\/span><span style=\"color: #BD93F9\">2<\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\">only<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">  address<\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\">family ipv4 unicast<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">  !<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\"> !<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\"> interface GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">1<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">  circuit<\/span><span style=\"color: #FF79C6\">-type<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #FF79C6\">level-<\/span><span style=\"color: #BD93F9\">2<\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\">only<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">  address<\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\">family ipv4 unicast<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">  !<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\"> !<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\"> interface GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">2<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">  circuit<\/span><span style=\"color: #FF79C6\">-type<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #FF79C6\">level-<\/span><span style=\"color: #BD93F9\">2<\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\">only<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">  address<\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\">family ipv4 unicast<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">  !<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\"> !<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\"> interface GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">5<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">  circuit<\/span><span style=\"color: #FF79C6\">-type<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #FF79C6\">level-<\/span><span style=\"color: #BD93F9\">2<\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\">only<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">  address<\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\">family ipv4 unicast<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">  !<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\"> !<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">!<\/span><\/span>\n<span class=\"line\"><span style=\"color: #FF79C6\">end<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><\/span><\/code><\/pre><\/div>\n\n\n\n<h3><span class=\"ez-toc-section\" id=\"Configuration_L1L2_Routers_R6_R6\"><\/span><span style=\"color: #800080;\">Configuration L1\/L2 Routers (R6 &amp; R6)<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.75rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;line-height:1rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span role=\"button\" tabindex=\"0\" data-code=\"==== R3,R4,R5,R6  (L1\/L2)\n\nhostname R6\n!\ninterface Loopback0\n ipv4 address 6.6.6.6 255.255.255.255\n!\ninterface GigabitEthernet0\/0\/0\/0\n ipv4 address 10.2.6.6 255.255.255.0\n!\ninterface GigabitEthernet0\/0\/0\/1\n ipv4 address 10.6.11.6 255.255.255.0\n!\ninterface GigabitEthernet0\/0\/0\/2\n ipv4 address 10.5.6.6 255.255.255.0\n!\ninterface GigabitEthernet0\/0\/0\/3\n ipv4 address 10.6.10.6 255.255.255.0\n!\nrouter isis 1\n net 49.001.0000.0000.0006.00\n address-family ipv4 unicast\n  metric-style wide\n!\n interface Loopback0\n  passive\n  address-family ipv4 unicast\n  !\n !\n interface GigabitEthernet0\/0\/0\/0\n  circuit-type level-2-only\n  address-family ipv4 unicast\n  !\n !\n interface GigabitEthernet0\/0\/0\/2\n  address-family ipv4 unicast\n  !\n !\n interface GigabitEthernet0\/0\/0\/3\n  circuit-type level-1\n  address-family ipv4 unicast\n  !\n !\n!\n\n========== OSPF only on R6 to R11\n\nrouter ospf 1\n area 0\n  interface GigabitEthernet0\/0\/0\/1\n   network point-to-point\n  !\n !\n!\n\n\n\" style=\"color:#F8F8F2;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M4.5 12.75l6 6 9-13.5\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M16.5 8.25V6a2.25 2.25 0 00-2.25-2.25H6A2.25 2.25 0 003.75 6v8.25A2.25 2.25 0 006 16.5h2.25m8.25-8.25H18a2.25 2.25 0 012.25 2.25V18A2.25 2.25 0 0118 20.25h-7.5A2.25 2.25 0 018.25 18v-1.5m8.25-8.25h-6a2.25 2.25 0 00-2.25 2.25v6\"><\/path><\/svg><\/span><pre class=\"shiki dracula\" style=\"background-color: #282A36\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #FF79C6\">====<\/span><span style=\"color: #F8F8F2\"> R3,R4,R5,R6  (L1<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #F8F8F2\">L2)<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">hostname R6<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">!<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">interface Loopback0<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\"> ipv4 address <\/span><span style=\"color: #BD93F9\">6.6<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">6.6<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #BD93F9\">255.255<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">255.255<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">!<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">interface GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\"> ipv4 address <\/span><span style=\"color: #BD93F9\">10.2<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">6.6<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #BD93F9\">255.255<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">255.0<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">!<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">interface GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">1<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\"> ipv4 address <\/span><span style=\"color: #BD93F9\">10.6<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">11.6<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #BD93F9\">255.255<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">255.0<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">!<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">interface GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">2<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\"> ipv4 address <\/span><span style=\"color: #BD93F9\">10.5<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">6.6<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #BD93F9\">255.255<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">255.0<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">!<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">interface GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">3<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\"> ipv4 address <\/span><span style=\"color: #BD93F9\">10.6<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">10.6<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #BD93F9\">255.255<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">255.0<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">!<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">router isis <\/span><span style=\"color: #BD93F9\">1<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\"> net <\/span><span style=\"color: #BD93F9\">49.001<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">0000.0000<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">0006.00<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\"> address<\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\">family ipv4 unicast<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">  metric<\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\">style wide<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">!<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\"> interface Loopback0<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">  passive<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">  address<\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\">family ipv4 unicast<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">  !<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\"> !<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\"> interface GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">  circuit<\/span><span style=\"color: #FF79C6\">-type<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #FF79C6\">level-<\/span><span style=\"color: #BD93F9\">2<\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\">only<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">  address<\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\">family ipv4 unicast<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">  !<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\"> !<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\"> interface GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">2<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">  address<\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\">family ipv4 unicast<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">  !<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\"> !<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\"> interface GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">3<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">  circuit<\/span><span style=\"color: #FF79C6\">-type<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #FF79C6\">level-<\/span><span style=\"color: #BD93F9\">1<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">  address<\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\">family ipv4 unicast<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">  !<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\"> !<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">!<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #FF79C6\">==========<\/span><span style=\"color: #F8F8F2\"> OSPF only <\/span><span style=\"color: #FF79C6\">on<\/span><span style=\"color: #F8F8F2\"> R6 to R11<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">router ospf <\/span><span style=\"color: #BD93F9\">1<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\"> area <\/span><span style=\"color: #BD93F9\">0<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">  interface GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">1<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">   network point<\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\">to<\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\">point<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">  !<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\"> !<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">!<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><\/span><\/code><\/pre><\/div>\n\n\n\n<h3><span class=\"ez-toc-section\" id=\"Configuration_L1_Routers_R9_R10\"><\/span><span style=\"color: #800080;\">Configuration L1 Routers (R9 &amp; R10)<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.75rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;line-height:1rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span role=\"button\" tabindex=\"0\" data-code=\"==== R7,R8,R9,R10  (L1)\n\nhostname R10\ninterface Loopback0\n ip address 10.10.10.10 255.255.255.255\n ip router isis 1\n isis circuit-type level-1\n!\ninterface GigabitEthernet0\/0\n ip address 10.10.11.10 255.255.255.0\n ip ospf network point-to-point\n ip ospf 1 area 0\n media-type rj45\n!\ninterface GigabitEthernet0\/2\n ip address 10.9.10.10 255.255.255.0\n ip router isis 1\n isis circuit-type level-1\n!\ninterface GigabitEthernet0\/3\n ip address 10.6.10.10 255.255.255.0\n ip router isis 1\n isis circuit-type level-1\n!\nrouter isis 1\n net 49.0001.0000.0000.0010.00\n is-type level-1\n metric-style wide\n!\nrouter ospf 1\n router-id 10.10.10.10\n!\n\n\" style=\"color:#F8F8F2;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M4.5 12.75l6 6 9-13.5\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M16.5 8.25V6a2.25 2.25 0 00-2.25-2.25H6A2.25 2.25 0 003.75 6v8.25A2.25 2.25 0 006 16.5h2.25m8.25-8.25H18a2.25 2.25 0 012.25 2.25V18A2.25 2.25 0 0118 20.25h-7.5A2.25 2.25 0 018.25 18v-1.5m8.25-8.25h-6a2.25 2.25 0 00-2.25 2.25v6\"><\/path><\/svg><\/span><pre class=\"shiki dracula\" style=\"background-color: #282A36\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #FF79C6\">====<\/span><span style=\"color: #F8F8F2\"> R7,R8,R9,R10  (L1)<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">hostname R10<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">interface Loopback0<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\"> ip address <\/span><span style=\"color: #BD93F9\">10.10<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">10.10<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #BD93F9\">255.255<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">255.255<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\"> ip router isis <\/span><span style=\"color: #BD93F9\">1<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\"> isis circuit<\/span><span style=\"color: #FF79C6\">-type<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #FF79C6\">level-<\/span><span style=\"color: #BD93F9\">1<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">!<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">interface GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\"> ip address <\/span><span style=\"color: #BD93F9\">10.10<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">11.10<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #BD93F9\">255.255<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">255.0<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\"> ip ospf network point<\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\">to<\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\">point<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\"> ip ospf <\/span><span style=\"color: #BD93F9\">1<\/span><span style=\"color: #F8F8F2\"> area <\/span><span style=\"color: #BD93F9\">0<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\"> media<\/span><span style=\"color: #FF79C6\">-type<\/span><span style=\"color: #F8F8F2\"> rj45<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">!<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">interface GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">2<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\"> ip address <\/span><span style=\"color: #BD93F9\">10.9<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">10.10<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #BD93F9\">255.255<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">255.0<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\"> ip router isis <\/span><span style=\"color: #BD93F9\">1<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\"> isis circuit<\/span><span style=\"color: #FF79C6\">-type<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #FF79C6\">level-<\/span><span style=\"color: #BD93F9\">1<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">!<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">interface GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">3<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\"> ip address <\/span><span style=\"color: #BD93F9\">10.6<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">10.10<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #BD93F9\">255.255<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">255.0<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\"> ip router isis <\/span><span style=\"color: #BD93F9\">1<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\"> isis circuit<\/span><span style=\"color: #FF79C6\">-type<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #FF79C6\">level-<\/span><span style=\"color: #BD93F9\">1<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">!<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">router isis <\/span><span style=\"color: #BD93F9\">1<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\"> net <\/span><span style=\"color: #BD93F9\">49.0001<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">0000.0000<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">0010.00<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #FF79C6\">is-type<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #FF79C6\">level-<\/span><span style=\"color: #BD93F9\">1<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\"> metric<\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\">style wide<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">!<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">router ospf <\/span><span style=\"color: #BD93F9\">1<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\"> router<\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\">id <\/span><span style=\"color: #BD93F9\">10.10<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">10.10<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">!<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><\/span><\/code><\/pre><\/div>\n\n\n\n<h3><span class=\"ez-toc-section\" id=\"Configuration_OSPF_Router_R11\"><\/span><span style=\"color: #800080;\">Configuration OSPF Router (R11)<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.75rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;line-height:1rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span role=\"button\" tabindex=\"0\" data-code=\"==== R11\n\nhostname R11\n\ninterface Loopback0\n ip address 11.11.11.11 255.255.255.255\n ip ospf 1 area 0\n!\ninterface GigabitEthernet0\/0\n ip address 10.10.11.11 255.255.255.0\n ip ospf network point-to-point\n ip ospf 1 area 0\n!\ninterface GigabitEthernet0\/1\n ip address 10.6.11.11 255.255.255.0\n ip ospf network point-to-point\n ip ospf 1 area 0\n!\nrouter ospf 1\n router-id 11.11.11.11\n redistribute connected subnets\n\n==== These are subnets we are using for redistribution into IS-IS\n\n!\ninterface Loopback100\n ip address 100.130.1.1 255.255.255.0\n!\ninterface Loopback101\n ip address 100.130.2.1 255.255.255.0\n!\ninterface Loopback102\n ip address 100.130.3.1 255.255.255.0\n!\n\n\" style=\"color:#F8F8F2;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M4.5 12.75l6 6 9-13.5\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M16.5 8.25V6a2.25 2.25 0 00-2.25-2.25H6A2.25 2.25 0 003.75 6v8.25A2.25 2.25 0 006 16.5h2.25m8.25-8.25H18a2.25 2.25 0 012.25 2.25V18A2.25 2.25 0 0118 20.25h-7.5A2.25 2.25 0 018.25 18v-1.5m8.25-8.25h-6a2.25 2.25 0 00-2.25 2.25v6\"><\/path><\/svg><\/span><pre class=\"shiki dracula\" style=\"background-color: #282A36\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #FF79C6\">====<\/span><span style=\"color: #F8F8F2\"> R11<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">hostname R11<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">interface Loopback0<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\"> ip address <\/span><span style=\"color: #BD93F9\">11.11<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">11.11<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #BD93F9\">255.255<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">255.255<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\"> ip ospf <\/span><span style=\"color: #BD93F9\">1<\/span><span style=\"color: #F8F8F2\"> area <\/span><span style=\"color: #BD93F9\">0<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">!<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">interface GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\"> ip address <\/span><span style=\"color: #BD93F9\">10.10<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">11.11<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #BD93F9\">255.255<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">255.0<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\"> ip ospf network point<\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\">to<\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\">point<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\"> ip ospf <\/span><span style=\"color: #BD93F9\">1<\/span><span style=\"color: #F8F8F2\"> area <\/span><span style=\"color: #BD93F9\">0<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">!<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">interface GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">1<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\"> ip address <\/span><span style=\"color: #BD93F9\">10.6<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">11.11<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #BD93F9\">255.255<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">255.0<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\"> ip ospf network point<\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\">to<\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\">point<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\"> ip ospf <\/span><span style=\"color: #BD93F9\">1<\/span><span style=\"color: #F8F8F2\"> area <\/span><span style=\"color: #BD93F9\">0<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">!<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">router ospf <\/span><span style=\"color: #BD93F9\">1<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\"> router<\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\">id <\/span><span style=\"color: #BD93F9\">11.11<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">11.11<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\"> redistribute connected subnets<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #FF79C6\">====<\/span><span style=\"color: #F8F8F2\"> These are subnets we are <\/span><span style=\"color: #FF79C6\">using<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #FF79C6\">for<\/span><span style=\"color: #F8F8F2\"> redistribution <\/span><span style=\"color: #FF79C6\">into<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #FF79C6\">IS-IS<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">!<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">interface Loopback100<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\"> ip address <\/span><span style=\"color: #BD93F9\">100.130<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">1.1<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #BD93F9\">255.255<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">255.0<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">!<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">interface Loopback101<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\"> ip address <\/span><span style=\"color: #BD93F9\">100.130<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">2.1<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #BD93F9\">255.255<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">255.0<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">!<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">interface Loopback102<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\"> ip address <\/span><span style=\"color: #BD93F9\">100.130<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">3.1<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #BD93F9\">255.255<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">255.0<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">!<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><\/span><\/code><\/pre><\/div>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<h2><span class=\"ez-toc-section\" id=\"Router_Verifications\"><\/span><span style=\"color: #800080;\">Router Verifications<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"Verification_L2_Routers_R1_R2\"><\/span><span style=\"color: #800080;\">Verification L2 Routers (R1 &amp; R2)<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.75rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;line-height:1rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span role=\"button\" tabindex=\"0\" data-code=\"==== R1 &amp; R2  (L2)\n\nRP\/0\/0\/CPU0:R2#sh isis interface brief\n\nIS-IS 1 Interfaces\n    Interface      All     Adjs    Adj Topos  Adv Topos  CLNS   MTU    Prio\n                   OK    L1   L2    Run\/Cfg    Run\/Cfg                L1   L2\n-----------------  ---  ---------  ---------  ---------  ----  ----  --------\nLo0                Yes    -    0      1\/1        1\/1     Up    1500    -    -\nGi0\/0\/0\/0          No     -    -      0\/1        0\/1     Down  1497    -    -\nGi0\/0\/0\/1          Yes    -    1      1\/1        1\/1     Up    1497    -   64\nGi0\/0\/0\/2          No     -    -      0\/1        0\/1     Down  1497    -    -\nGi0\/0\/0\/5          Yes    -    1*     1\/1        1\/1     Up    1497    -   64\n\n\nRP\/0\/0\/CPU0:R2#show isis neighbors\nIS-IS 1 neighbors:\nSystem Id      Interface        SNPA           State Holdtime Type IETF-NSF\nR1             Gi0\/0\/0\/5        5254.000e.f99f Up    26       L2   Capable\nR6             Gi0\/0\/0\/1        5254.001e.fa78 Up    9        L2   Capable\nTotal neighbor count: 2\n\n\nRP\/0\/0\/CPU0:R2#show isis protocol\nIS-IS Router: 1\n  System Id: 0000.0000.0002\n  Instance Id: 0\n  IS Levels: level-2-only\n  Manual area address(es):\n    49.0000\n  Routing for area address(es):\n    49.0000\n  Non-stop forwarding: Disabled\n  Most recent startup mode: Cold Restart\n  TE connection status: Down\n  Topologies supported by IS-IS:\n    IPv4 Unicast\n      Level-2\n        Metric style (generate\/accept): Wide\/Wide\n        Metric: 10\n        ISPF status: Disabled\n      No protocols redistributed\n      Distance: 115\n      Advertise Passive Interface Prefixes Only: No\n  SRLB allocated: 0 - 0\n  SRGB not allocated\n  Interfaces supported by IS-IS:\n    Loopback0 is running actively (active in configuration)\n    GigabitEthernet0\/0\/0\/0 is disabled (active in configuration)\n    GigabitEthernet0\/0\/0\/1 is running actively (active in configuration)\n    GigabitEthernet0\/0\/0\/2 is disabled (active in configuration)\n    GigabitEthernet0\/0\/0\/5 is running actively (active in configuration)\n\nRP\/0\/0\/CPU0:R2#sh ip route\nCodes: C - connected, S - static, R - RIP, B - BGP, (&gt;) - Diversion path\n       D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area\n       N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2\n       E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP\n       i - ISIS, L1 - IS-IS level-1, L2 - IS-IS level-2\n       ia - IS-IS inter area, su - IS-IS summary null, * - candidate default\n       U - per-user static route, o - ODR, L - local, G  - DAGR, l - LISP\n       A - access\/subscriber, a - Application route\n       M - mobile route, r - RPL, t - Traffic Engineering, (!) - FRR Backup path\n\nGateway of last resort is not set\n\ni L2 1.1.1.1\/32 [115\/10] via 10.1.2.1, 02:44:43, GigabitEthernet0\/0\/0\/5\nL    2.2.2.2\/32 is directly connected, 03:16:36, Loopback0\ni L2 5.5.5.5\/32 [115\/20] via 10.2.6.6, 02:44:34, GigabitEthernet0\/0\/0\/1\n                [115\/20] via 10.1.2.1, 02:44:34, GigabitEthernet0\/0\/0\/5\ni L2 6.6.6.6\/32 [115\/10] via 10.2.6.6, 02:44:43, GigabitEthernet0\/0\/0\/1\ni L2 9.9.9.9\/32 [115\/40] via 10.2.6.6, 02:44:34, GigabitEthernet0\/0\/0\/1\n                [115\/40] via 10.1.2.1, 02:44:34, GigabitEthernet0\/0\/0\/5\nC    10.1.2.0\/24 is directly connected, 02:44:46, GigabitEthernet0\/0\/0\/5\nL    10.1.2.2\/32 is directly connected, 02:44:46, GigabitEthernet0\/0\/0\/5\ni L2 10.1.5.0\/24 [115\/20] via 10.1.2.1, 02:44:43, GigabitEthernet0\/0\/0\/5\nC    10.2.6.0\/24 is directly connected, 02:44:46, GigabitEthernet0\/0\/0\/1\nL    10.2.6.2\/32 is directly connected, 02:44:46, GigabitEthernet0\/0\/0\/1\ni L2 10.5.6.0\/24 [115\/20] via 10.2.6.6, 02:44:43, GigabitEthernet0\/0\/0\/1\ni L2 10.5.9.0\/24 [115\/30] via 10.2.6.6, 02:44:34, GigabitEthernet0\/0\/0\/1\n                 [115\/30] via 10.1.2.1, 02:44:34, GigabitEthernet0\/0\/0\/5\ni L2 10.6.10.0\/24 [115\/20] via 10.2.6.6, 02:44:43, GigabitEthernet0\/0\/0\/1\ni L2 10.6.11.0\/24 [115\/10] via 10.2.6.6, 02:44:43, GigabitEthernet0\/0\/0\/1\ni L2 10.9.10.0\/24 [115\/30] via 10.2.6.6, 02:44:43, GigabitEthernet0\/0\/0\/1\ni L2 10.10.10.10\/32 [115\/30] via 10.2.6.6, 02:44:43, GigabitEthernet0\/0\/0\/1\ni L2 10.10.11.0\/24 [115\/10] via 10.2.6.6, 02:44:43, GigabitEthernet0\/0\/0\/1\ni L2 11.11.11.11\/32 [115\/10] via 10.2.6.6, 02:44:43, GigabitEthernet0\/0\/0\/1\n\" style=\"color:#F8F8F2;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M4.5 12.75l6 6 9-13.5\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M16.5 8.25V6a2.25 2.25 0 00-2.25-2.25H6A2.25 2.25 0 003.75 6v8.25A2.25 2.25 0 006 16.5h2.25m8.25-8.25H18a2.25 2.25 0 012.25 2.25V18A2.25 2.25 0 0118 20.25h-7.5A2.25 2.25 0 018.25 18v-1.5m8.25-8.25h-6a2.25 2.25 0 00-2.25 2.25v6\"><\/path><\/svg><\/span><pre class=\"shiki dracula\" style=\"background-color: #282A36\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #FF79C6\">====<\/span><span style=\"color: #F8F8F2\"> R1 &amp; R2  (L2)<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">RP<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #F8F8F2\">CPU0:R2#sh isis interface brief<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #FF79C6\">IS-IS<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #BD93F9\">1<\/span><span style=\"color: #F8F8F2\"> Interfaces<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">    Interface      <\/span><span style=\"color: #FF79C6\">All<\/span><span style=\"color: #F8F8F2\">     Adjs    Adj Topos  Adv Topos  CLNS   MTU    Prio<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">                   OK    L1   L2    Run<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #F8F8F2\">Cfg    Run<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #F8F8F2\">Cfg                L1   L2<\/span><\/span>\n<span class=\"line\"><span style=\"color: #6272A4\">-----------------  ---  ---------  ---------  ---------  ----  ----  --------<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">Lo0                Yes    <\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\">    <\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #F8F8F2\">      <\/span><span style=\"color: #BD93F9\">1<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">1<\/span><span style=\"color: #F8F8F2\">        <\/span><span style=\"color: #BD93F9\">1<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">1<\/span><span style=\"color: #F8F8F2\">     Up    <\/span><span style=\"color: #BD93F9\">1500<\/span><span style=\"color: #F8F8F2\">    <\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\">    <\/span><span style=\"color: #FF79C6\">-<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">Gi0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #F8F8F2\">          No     <\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\">    <\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\">      <\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">1<\/span><span style=\"color: #F8F8F2\">        <\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">1<\/span><span style=\"color: #F8F8F2\">     Down  <\/span><span style=\"color: #BD93F9\">1497<\/span><span style=\"color: #F8F8F2\">    <\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\">    <\/span><span style=\"color: #FF79C6\">-<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">Gi0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">1<\/span><span style=\"color: #F8F8F2\">          Yes    <\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\">    <\/span><span style=\"color: #BD93F9\">1<\/span><span style=\"color: #F8F8F2\">      <\/span><span style=\"color: #BD93F9\">1<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">1<\/span><span style=\"color: #F8F8F2\">        <\/span><span style=\"color: #BD93F9\">1<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">1<\/span><span style=\"color: #F8F8F2\">     Up    <\/span><span style=\"color: #BD93F9\">1497<\/span><span style=\"color: #F8F8F2\">    <\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\">   <\/span><span style=\"color: #BD93F9\">64<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">Gi0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">2<\/span><span style=\"color: #F8F8F2\">          No     <\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\">    <\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\">      <\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">1<\/span><span style=\"color: #F8F8F2\">        <\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">1<\/span><span style=\"color: #F8F8F2\">     Down  <\/span><span style=\"color: #BD93F9\">1497<\/span><span style=\"color: #F8F8F2\">    <\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\">    <\/span><span style=\"color: #FF79C6\">-<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">Gi0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">5<\/span><span style=\"color: #F8F8F2\">          Yes    <\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\">    <\/span><span style=\"color: #BD93F9\">1<\/span><span style=\"color: #FF79C6\">*<\/span><span style=\"color: #F8F8F2\">     <\/span><span style=\"color: #BD93F9\">1<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">1<\/span><span style=\"color: #F8F8F2\">        <\/span><span style=\"color: #BD93F9\">1<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">1<\/span><span style=\"color: #F8F8F2\">     Up    <\/span><span style=\"color: #BD93F9\">1497<\/span><span style=\"color: #F8F8F2\">    <\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\">   <\/span><span style=\"color: #BD93F9\">64<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">RP<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #F8F8F2\">CPU0:R2#show isis neighbors<\/span><\/span>\n<span class=\"line\"><span style=\"color: #FF79C6\">IS-IS<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #BD93F9\">1<\/span><span style=\"color: #F8F8F2\"> neighbors:<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">System Id      Interface        SNPA           State Holdtime <\/span><span style=\"color: #FF79C6\">Type<\/span><span style=\"color: #F8F8F2\"> IETF<\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\">NSF<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">R1             Gi0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">5<\/span><span style=\"color: #F8F8F2\">        <\/span><span style=\"color: #BD93F9\">5254<\/span><span style=\"color: #F8F8F2\">.000e.f99f Up    <\/span><span style=\"color: #BD93F9\">26<\/span><span style=\"color: #F8F8F2\">       L2   Capable<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">R6             Gi0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">1<\/span><span style=\"color: #F8F8F2\">        <\/span><span style=\"color: #BD93F9\">5254<\/span><span style=\"color: #F8F8F2\">.001e.fa78 Up    <\/span><span style=\"color: #BD93F9\">9<\/span><span style=\"color: #F8F8F2\">        L2   Capable<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">Total neighbor <\/span><span style=\"color: #8BE9FD\">count<\/span><span style=\"color: #F8F8F2\">: <\/span><span style=\"color: #BD93F9\">2<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">RP<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #F8F8F2\">CPU0:R2#show isis protocol<\/span><\/span>\n<span class=\"line\"><span style=\"color: #FF79C6\">IS-IS<\/span><span style=\"color: #F8F8F2\"> Router: <\/span><span style=\"color: #BD93F9\">1<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">  System Id: <\/span><span style=\"color: #BD93F9\">0000.0000<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">0002<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">  Instance Id: <\/span><span style=\"color: #BD93F9\">0<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">  <\/span><span style=\"color: #FF79C6\">IS<\/span><span style=\"color: #F8F8F2\"> Levels: <\/span><span style=\"color: #FF79C6\">level-<\/span><span style=\"color: #BD93F9\">2<\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\">only<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">  Manual area address(es):<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">    <\/span><span style=\"color: #BD93F9\">49.0000<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">  Routing <\/span><span style=\"color: #FF79C6\">for<\/span><span style=\"color: #F8F8F2\"> area address(es):<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">    <\/span><span style=\"color: #BD93F9\">49.0000<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">  Non<\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\">stop forwarding: Disabled<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">  Most recent startup <\/span><span style=\"color: #FF79C6\">mode<\/span><span style=\"color: #F8F8F2\">: Cold Restart<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">  TE connection status: Down<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">  Topologies supported by <\/span><span style=\"color: #FF79C6\">IS-IS<\/span><span style=\"color: #F8F8F2\">:<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">    IPv4 Unicast<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">      <\/span><span style=\"color: #FF79C6\">Level-<\/span><span style=\"color: #BD93F9\">2<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">        Metric style (generate<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #F8F8F2\">accept): Wide<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #F8F8F2\">Wide<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">        Metric: <\/span><span style=\"color: #BD93F9\">10<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">        ISPF status: Disabled<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">      No protocols redistributed<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">      Distance: <\/span><span style=\"color: #BD93F9\">115<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">      Advertise Passive Interface Prefixes Only: No<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">  SRLB allocated: <\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #BD93F9\">0<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">  SRGB <\/span><span style=\"color: #FF79C6\">not<\/span><span style=\"color: #F8F8F2\"> allocated<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">  Interfaces supported by <\/span><span style=\"color: #FF79C6\">IS-IS<\/span><span style=\"color: #F8F8F2\">:<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">    Loopback0 <\/span><span style=\"color: #FF79C6\">is<\/span><span style=\"color: #F8F8F2\"> running actively (active <\/span><span style=\"color: #FF79C6\">in<\/span><span style=\"color: #F8F8F2\"> configuration)<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">    GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #FF79C6\">is<\/span><span style=\"color: #F8F8F2\"> disabled (active <\/span><span style=\"color: #FF79C6\">in<\/span><span style=\"color: #F8F8F2\"> configuration)<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">    GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">1<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #FF79C6\">is<\/span><span style=\"color: #F8F8F2\"> running actively (active <\/span><span style=\"color: #FF79C6\">in<\/span><span style=\"color: #F8F8F2\"> configuration)<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">    GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">2<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #FF79C6\">is<\/span><span style=\"color: #F8F8F2\"> disabled (active <\/span><span style=\"color: #FF79C6\">in<\/span><span style=\"color: #F8F8F2\"> configuration)<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">    GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">5<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #FF79C6\">is<\/span><span style=\"color: #F8F8F2\"> running actively (active <\/span><span style=\"color: #FF79C6\">in<\/span><span style=\"color: #F8F8F2\"> configuration)<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">RP<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #F8F8F2\">CPU0:R2#sh ip route<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">Codes: <\/span><span style=\"color: #FF79C6\">C<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\"> connected, S <\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\"> static, R <\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\"> RIP, B <\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\"> BGP, (<\/span><span style=\"color: #FF79C6\">&gt;<\/span><span style=\"color: #F8F8F2\">) <\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\"> Diversion <\/span><span style=\"color: #8BE9FD\">path<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">       D <\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\"> EIGRP, EX <\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\"> EIGRP external, O <\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\"> OSPF, IA <\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\"> OSPF inter area<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">       N1 <\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\"> OSPF NSSA external <\/span><span style=\"color: #FF79C6\">type<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #BD93F9\">1<\/span><span style=\"color: #F8F8F2\">, N2 <\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\"> OSPF NSSA external <\/span><span style=\"color: #FF79C6\">type<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #BD93F9\">2<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">       E1 <\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\"> OSPF external <\/span><span style=\"color: #FF79C6\">type<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #BD93F9\">1<\/span><span style=\"color: #F8F8F2\">, E2 <\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\"> OSPF external <\/span><span style=\"color: #FF79C6\">type<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #BD93F9\">2<\/span><span style=\"color: #F8F8F2\">, E <\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\"> EGP<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">       i <\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\"> ISIS, L1 <\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #FF79C6\">IS-IS<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #FF79C6\">level-<\/span><span style=\"color: #BD93F9\">1<\/span><span style=\"color: #F8F8F2\">, L2 <\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #FF79C6\">IS-IS<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #FF79C6\">level-<\/span><span style=\"color: #BD93F9\">2<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">       ia <\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #FF79C6\">IS-IS<\/span><span style=\"color: #F8F8F2\"> inter area, su <\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #FF79C6\">IS-IS<\/span><span style=\"color: #F8F8F2\"> summary <\/span><span style=\"color: #BD93F9\">null<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #FF79C6\">*<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\"> candidate <\/span><span style=\"color: #FF79C6\">default<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">       U <\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\"> per<\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #8BE9FD\">user<\/span><span style=\"color: #F8F8F2\"> static route, o <\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\"> ODR, L <\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\"> local, G  <\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\"> DAGR, l <\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\"> LISP<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">       A <\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\"> access<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #F8F8F2\">subscriber, a <\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\"> Application route<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">       M <\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\"> mobile route, r <\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\"> RPL, t <\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\"> Traffic Engineering, (!) <\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\"> FRR Backup <\/span><span style=\"color: #8BE9FD\">path<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">Gateway <\/span><span style=\"color: #FF79C6\">of<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #8BE9FD\">last<\/span><span style=\"color: #F8F8F2\"> resort <\/span><span style=\"color: #FF79C6\">is<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #FF79C6\">not<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #FF79C6\">set<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">i L2 <\/span><span style=\"color: #BD93F9\">1.1<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">1.1<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">32<\/span><span style=\"color: #F8F8F2\"> [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">10<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.1<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">2.1<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">02<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">44<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">43<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">5<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">L    <\/span><span style=\"color: #BD93F9\">2.2<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">2.2<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">32<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #FF79C6\">is<\/span><span style=\"color: #F8F8F2\"> directly connected, <\/span><span style=\"color: #BD93F9\">03<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">16<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">36<\/span><span style=\"color: #F8F8F2\">, Loopback0<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">i L2 <\/span><span style=\"color: #BD93F9\">5.5<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">5.5<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">32<\/span><span style=\"color: #F8F8F2\"> [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">20<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.2<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">6.6<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">02<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">44<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">34<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">1<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">                [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">20<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.1<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">2.1<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">02<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">44<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">34<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">5<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">i L2 <\/span><span style=\"color: #BD93F9\">6.6<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">6.6<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">32<\/span><span style=\"color: #F8F8F2\"> [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">10<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.2<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">6.6<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">02<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">44<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">43<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">1<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">i L2 <\/span><span style=\"color: #BD93F9\">9.9<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">9.9<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">32<\/span><span style=\"color: #F8F8F2\"> [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">40<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.2<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">6.6<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">02<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">44<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">34<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">1<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">                [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">40<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.1<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">2.1<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">02<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">44<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">34<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">5<\/span><\/span>\n<span class=\"line\"><span style=\"color: #FF79C6\">C<\/span><span style=\"color: #F8F8F2\">    <\/span><span style=\"color: #BD93F9\">10.1<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">2.0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">24<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #FF79C6\">is<\/span><span style=\"color: #F8F8F2\"> directly connected, <\/span><span style=\"color: #BD93F9\">02<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">44<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">46<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">5<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">L    <\/span><span style=\"color: #BD93F9\">10.1<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">2.2<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">32<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #FF79C6\">is<\/span><span style=\"color: #F8F8F2\"> directly connected, <\/span><span style=\"color: #BD93F9\">02<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">44<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">46<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">5<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">i L2 <\/span><span style=\"color: #BD93F9\">10.1<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">5.0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">24<\/span><span style=\"color: #F8F8F2\"> [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">20<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.1<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">2.1<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">02<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">44<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">43<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">5<\/span><\/span>\n<span class=\"line\"><span style=\"color: #FF79C6\">C<\/span><span style=\"color: #F8F8F2\">    <\/span><span style=\"color: #BD93F9\">10.2<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">6.0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">24<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #FF79C6\">is<\/span><span style=\"color: #F8F8F2\"> directly connected, <\/span><span style=\"color: #BD93F9\">02<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">44<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">46<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">1<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">L    <\/span><span style=\"color: #BD93F9\">10.2<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">6.2<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">32<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #FF79C6\">is<\/span><span style=\"color: #F8F8F2\"> directly connected, <\/span><span style=\"color: #BD93F9\">02<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">44<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">46<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">1<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">i L2 <\/span><span style=\"color: #BD93F9\">10.5<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">6.0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">24<\/span><span style=\"color: #F8F8F2\"> [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">20<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.2<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">6.6<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">02<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">44<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">43<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">1<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">i L2 <\/span><span style=\"color: #BD93F9\">10.5<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">9.0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">24<\/span><span style=\"color: #F8F8F2\"> [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">30<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.2<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">6.6<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">02<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">44<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">34<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">1<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">                 [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">30<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.1<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">2.1<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">02<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">44<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">34<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">5<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">i L2 <\/span><span style=\"color: #BD93F9\">10.6<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">10.0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">24<\/span><span style=\"color: #F8F8F2\"> [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">20<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.2<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">6.6<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">02<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">44<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">43<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">1<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">i L2 <\/span><span style=\"color: #BD93F9\">10.6<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">11.0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">24<\/span><span style=\"color: #F8F8F2\"> [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">10<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.2<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">6.6<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">02<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">44<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">43<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">1<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">i L2 <\/span><span style=\"color: #BD93F9\">10.9<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">10.0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">24<\/span><span style=\"color: #F8F8F2\"> [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">30<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.2<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">6.6<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">02<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">44<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">43<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">1<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">i L2 <\/span><span style=\"color: #BD93F9\">10.10<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">10.10<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">32<\/span><span style=\"color: #F8F8F2\"> [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">30<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.2<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">6.6<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">02<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">44<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">43<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">1<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">i L2 <\/span><span style=\"color: #BD93F9\">10.10<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">11.0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">24<\/span><span style=\"color: #F8F8F2\"> [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">10<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.2<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">6.6<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">02<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">44<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">43<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">1<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">i L2 <\/span><span style=\"color: #BD93F9\">11.11<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">11.11<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">32<\/span><span style=\"color: #F8F8F2\"> [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">10<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.2<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">6.6<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">02<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">44<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">43<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">1<\/span><\/span>\n<span class=\"line\"><\/span><\/code><\/pre><\/div>\n\n\n\n<h3><span class=\"ez-toc-section\" id=\"Verification_L1L2_Routers_R5_R6\"><\/span><span style=\"color: #800080;\">Verification L1\/L2 Routers (R5 &amp; R6)<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.75rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;line-height:1rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span role=\"button\" tabindex=\"0\" data-code=\"==== R3,R4,R5,R6  (L1\/L2)\n\nRP\/0\/0\/CPU0:R6#sh isis interface brief\nIS-IS 1 Interfaces\n    Interface      All     Adjs    Adj Topos  Adv Topos  CLNS   MTU    Prio\n                   OK    L1   L2    Run\/Cfg    Run\/Cfg                L1   L2\n-----------------  ---  ---------  ---------  ---------  ----  ----  --------\nLo0                Yes    -    -      0\/0        1\/1     No       -    -    -\nGi0\/0\/0\/0          Yes    -    1*     1\/1        1\/1     Up    1497    -   64\nGi0\/0\/0\/2          Yes    1    1      1\/1        1\/1     Up    1497   64   64\nGi0\/0\/0\/3          Yes    1*   -      1\/1        1\/1     Up    1497   64    -\n\n\nRP\/0\/0\/CPU0:R6#sh isis neighbors\nIS-IS 1 neighbors:\nSystem Id      Interface        SNPA           State Holdtime Type IETF-NSF\nR5             Gi0\/0\/0\/2        5254.00d2.8412 Up    9        L1L2 Capable\nR10            Gi0\/0\/0\/3        5254.0049.df60 Up    24       L1   Capable\nR2             Gi0\/0\/0\/0        5254.0003.35af Up    25       L2   Capable\n\n\n\nRP\/0\/0\/CPU0:R6#sh ospf interface brief\n* Indicates MADJ interface, (P) Indicates fast detect hold down state\nInterfaces for OSPF 1\nInterface          PID   Area            IP Address\/Mask    Cost  State Nbrs F\/C\nGi0\/0\/0\/1          1     0               10.6.11.6\/24       1     P2P   1\/1\n\n\nRP\/0\/0\/CPU0:R6#show ospf neighbor\nWed Nov 27 18:38:54.177 UTC\n\n* Indicates MADJ interface\n# Indicates Neighbor awaiting BFD session up\n\nNeighbors for OSPF 1\n\nNeighbor ID     Pri   State           Dead Time   Address         Interface\n11.11.11.11     1     FULL\/  -        00:00:39    10.6.11.11      GigabitEthernet0\/0\/0\/1\n    Neighbor is up for 03:18:40\n\nTotal neighbor count: 1\n\n\nRP\/0\/0\/CPU0:R6#sh ip route\nCodes: C - connected, S - static, R - RIP, B - BGP, (&gt;) - Diversion path\n       D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area\n       N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2\n       E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP\n       i - ISIS, L1 - IS-IS level-1, L2 - IS-IS level-2\n       ia - IS-IS inter area, su - IS-IS summary null, * - candidate default\n       U - per-user static route, o - ODR, L - local, G  - DAGR, l - LISP\n       A - access\/subscriber, a - Application route\n       M - mobile route, r - RPL, t - Traffic Engineering, (!) - FRR Backup path\n\nGateway of last resort is not set\n\ni L2 1.1.1.1\/32 [115\/20] via 10.2.6.2, 02:50:17, GigabitEthernet0\/0\/0\/0\n                [115\/20] via 10.5.6.5, 02:50:17, GigabitEthernet0\/0\/0\/2\ni L2 2.2.2.2\/32 [115\/20] via 10.2.6.2, 02:50:17, GigabitEthernet0\/0\/0\/0\ni L1 5.5.5.5\/32 [115\/10] via 10.5.6.5, 03:25:19, GigabitEthernet0\/0\/0\/2\nL    6.6.6.6\/32 is directly connected, 03:25:26, Loopback0\ni L1 9.9.9.9\/32 [115\/30] via 10.5.6.5, 03:25:14, GigabitEthernet0\/0\/0\/2\n                [115\/30] via 10.6.10.10, 03:25:14, GigabitEthernet0\/0\/0\/3\ni L2 10.1.2.0\/24 [115\/20] via 10.2.6.2, 02:50:17, GigabitEthernet0\/0\/0\/0\ni L2 10.1.5.0\/24 [115\/20] via 10.5.6.5, 02:56:15, GigabitEthernet0\/0\/0\/2\nC    10.2.6.0\/24 is directly connected, 03:25:26, GigabitEthernet0\/0\/0\/0\nL    10.2.6.6\/32 is directly connected, 03:25:26, GigabitEthernet0\/0\/0\/0\nC    10.5.6.0\/24 is directly connected, 03:25:26, GigabitEthernet0\/0\/0\/2\nL    10.5.6.6\/32 is directly connected, 03:25:26, GigabitEthernet0\/0\/0\/2\ni L1 10.5.9.0\/24 [115\/20] via 10.5.6.5, 03:25:19, GigabitEthernet0\/0\/0\/2\nC    10.6.10.0\/24 is directly connected, 03:25:26, GigabitEthernet0\/0\/0\/3\nL    10.6.10.6\/32 is directly connected, 03:25:26, GigabitEthernet0\/0\/0\/3\nC    10.6.11.0\/24 is directly connected, 03:25:26, GigabitEthernet0\/0\/0\/1\nL    10.6.11.6\/32 is directly connected, 03:25:26, GigabitEthernet0\/0\/0\/1\ni L1 10.9.10.0\/24 [115\/20] via 10.6.10.10, 03:25:19, GigabitEthernet0\/0\/0\/3\ni L1 10.10.10.10\/32 [115\/20] via 10.6.10.10, 03:25:19, GigabitEthernet0\/0\/0\/3\nO    10.10.11.0\/24 [110\/2] via 10.6.11.11, 03:18:57, GigabitEthernet0\/0\/0\/1\nO    11.11.11.11\/32 [110\/2] via 10.6.11.11, 03:18:57, GigabitEthernet0\/0\/0\/1\n\" style=\"color:#F8F8F2;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M4.5 12.75l6 6 9-13.5\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M16.5 8.25V6a2.25 2.25 0 00-2.25-2.25H6A2.25 2.25 0 003.75 6v8.25A2.25 2.25 0 006 16.5h2.25m8.25-8.25H18a2.25 2.25 0 012.25 2.25V18A2.25 2.25 0 0118 20.25h-7.5A2.25 2.25 0 018.25 18v-1.5m8.25-8.25h-6a2.25 2.25 0 00-2.25 2.25v6\"><\/path><\/svg><\/span><pre class=\"shiki dracula\" style=\"background-color: #282A36\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #FF79C6\">====<\/span><span style=\"color: #F8F8F2\"> R3,R4,R5,R6  (L1<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #F8F8F2\">L2)<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">RP<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #F8F8F2\">CPU0:R6#sh isis interface brief<\/span><\/span>\n<span class=\"line\"><span style=\"color: #FF79C6\">IS-IS<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #BD93F9\">1<\/span><span style=\"color: #F8F8F2\"> Interfaces<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">    Interface      <\/span><span style=\"color: #FF79C6\">All<\/span><span style=\"color: #F8F8F2\">     Adjs    Adj Topos  Adv Topos  CLNS   MTU    Prio<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">                   OK    L1   L2    Run<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #F8F8F2\">Cfg    Run<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #F8F8F2\">Cfg                L1   L2<\/span><\/span>\n<span class=\"line\"><span style=\"color: #6272A4\">-----------------  ---  ---------  ---------  ---------  ----  ----  --------<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">Lo0                Yes    <\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\">    <\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\">      <\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #F8F8F2\">        <\/span><span style=\"color: #BD93F9\">1<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">1<\/span><span style=\"color: #F8F8F2\">     No       <\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\">    <\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\">    <\/span><span style=\"color: #FF79C6\">-<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">Gi0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #F8F8F2\">          Yes    <\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\">    <\/span><span style=\"color: #BD93F9\">1<\/span><span style=\"color: #FF79C6\">*<\/span><span style=\"color: #F8F8F2\">     <\/span><span style=\"color: #BD93F9\">1<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">1<\/span><span style=\"color: #F8F8F2\">        <\/span><span style=\"color: #BD93F9\">1<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">1<\/span><span style=\"color: #F8F8F2\">     Up    <\/span><span style=\"color: #BD93F9\">1497<\/span><span style=\"color: #F8F8F2\">    <\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\">   <\/span><span style=\"color: #BD93F9\">64<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">Gi0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">2<\/span><span style=\"color: #F8F8F2\">          Yes    <\/span><span style=\"color: #BD93F9\">1<\/span><span style=\"color: #F8F8F2\">    <\/span><span style=\"color: #BD93F9\">1<\/span><span style=\"color: #F8F8F2\">      <\/span><span style=\"color: #BD93F9\">1<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">1<\/span><span style=\"color: #F8F8F2\">        <\/span><span style=\"color: #BD93F9\">1<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">1<\/span><span style=\"color: #F8F8F2\">     Up    <\/span><span style=\"color: #BD93F9\">1497<\/span><span style=\"color: #F8F8F2\">   <\/span><span style=\"color: #BD93F9\">64<\/span><span style=\"color: #F8F8F2\">   <\/span><span style=\"color: #BD93F9\">64<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">Gi0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">3<\/span><span style=\"color: #F8F8F2\">          Yes    <\/span><span style=\"color: #BD93F9\">1<\/span><span style=\"color: #FF79C6\">*<\/span><span style=\"color: #F8F8F2\">   <\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\">      <\/span><span style=\"color: #BD93F9\">1<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">1<\/span><span style=\"color: #F8F8F2\">        <\/span><span style=\"color: #BD93F9\">1<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">1<\/span><span style=\"color: #F8F8F2\">     Up    <\/span><span style=\"color: #BD93F9\">1497<\/span><span style=\"color: #F8F8F2\">   <\/span><span style=\"color: #BD93F9\">64<\/span><span style=\"color: #F8F8F2\">    <\/span><span style=\"color: #FF79C6\">-<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">RP<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #F8F8F2\">CPU0:R6#sh isis neighbors<\/span><\/span>\n<span class=\"line\"><span style=\"color: #FF79C6\">IS-IS<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #BD93F9\">1<\/span><span style=\"color: #F8F8F2\"> neighbors:<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">System Id      Interface        SNPA           State Holdtime <\/span><span style=\"color: #FF79C6\">Type<\/span><span style=\"color: #F8F8F2\"> IETF<\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\">NSF<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">R5             Gi0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">2<\/span><span style=\"color: #F8F8F2\">        <\/span><span style=\"color: #BD93F9\">5254<\/span><span style=\"color: #F8F8F2\">.00d2.<\/span><span style=\"color: #BD93F9\">8412<\/span><span style=\"color: #F8F8F2\"> Up    <\/span><span style=\"color: #BD93F9\">9<\/span><span style=\"color: #F8F8F2\">        L1L2 Capable<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">R10            Gi0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">3<\/span><span style=\"color: #F8F8F2\">        <\/span><span style=\"color: #BD93F9\">5254.0049<\/span><span style=\"color: #F8F8F2\">.df60 Up    <\/span><span style=\"color: #BD93F9\">24<\/span><span style=\"color: #F8F8F2\">       L1   Capable<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">R2             Gi0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #F8F8F2\">        <\/span><span style=\"color: #BD93F9\">5254.0003<\/span><span style=\"color: #F8F8F2\">.35af Up    <\/span><span style=\"color: #BD93F9\">25<\/span><span style=\"color: #F8F8F2\">       L2   Capable<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">RP<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #F8F8F2\">CPU0:R6#sh ospf interface brief<\/span><\/span>\n<span class=\"line\"><span style=\"color: #FF79C6\">*<\/span><span style=\"color: #F8F8F2\"> Indicates MADJ interface, (P) Indicates fast detect hold down state<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">Interfaces <\/span><span style=\"color: #FF79C6\">for<\/span><span style=\"color: #F8F8F2\"> OSPF <\/span><span style=\"color: #BD93F9\">1<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">Interface          PID   Area            IP Address<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #F8F8F2\">Mask    Cost  State Nbrs F<\/span><span style=\"color: #FF79C6\">\/C<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">Gi0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">1<\/span><span style=\"color: #F8F8F2\">          <\/span><span style=\"color: #BD93F9\">1<\/span><span style=\"color: #F8F8F2\">     <\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #F8F8F2\">               <\/span><span style=\"color: #BD93F9\">10.6<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">11.6<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">24<\/span><span style=\"color: #F8F8F2\">       <\/span><span style=\"color: #BD93F9\">1<\/span><span style=\"color: #F8F8F2\">     P2P   <\/span><span style=\"color: #BD93F9\">1<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">1<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">RP<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #F8F8F2\">CPU0:R6#show ospf neighbor<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">Wed Nov <\/span><span style=\"color: #BD93F9\">27<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #BD93F9\">18<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">38<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">54.177<\/span><span style=\"color: #F8F8F2\"> UTC<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #FF79C6\">*<\/span><span style=\"color: #F8F8F2\"> Indicates MADJ interface<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\"># Indicates Neighbor awaiting BFD session up<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">Neighbors <\/span><span style=\"color: #FF79C6\">for<\/span><span style=\"color: #F8F8F2\"> OSPF <\/span><span style=\"color: #BD93F9\">1<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">Neighbor ID     Pri   State           Dead Time   Address         Interface<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BD93F9\">11.11<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">11.11<\/span><span style=\"color: #F8F8F2\">     <\/span><span style=\"color: #BD93F9\">1<\/span><span style=\"color: #F8F8F2\">     FULL<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #F8F8F2\">  <\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\">        <\/span><span style=\"color: #BD93F9\">00<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">00<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">39<\/span><span style=\"color: #F8F8F2\">    <\/span><span style=\"color: #BD93F9\">10.6<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">11.11<\/span><span style=\"color: #F8F8F2\">      GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">1<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">    Neighbor <\/span><span style=\"color: #FF79C6\">is<\/span><span style=\"color: #F8F8F2\"> up <\/span><span style=\"color: #FF79C6\">for<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #BD93F9\">03<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">18<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">40<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">Total neighbor <\/span><span style=\"color: #8BE9FD\">count<\/span><span style=\"color: #F8F8F2\">: <\/span><span style=\"color: #BD93F9\">1<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">RP<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #F8F8F2\">CPU0:R6#sh ip route<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">Codes: <\/span><span style=\"color: #FF79C6\">C<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\"> connected, S <\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\"> static, R <\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\"> RIP, B <\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\"> BGP, (<\/span><span style=\"color: #FF79C6\">&gt;<\/span><span style=\"color: #F8F8F2\">) <\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\"> Diversion <\/span><span style=\"color: #8BE9FD\">path<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">       D <\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\"> EIGRP, EX <\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\"> EIGRP external, O <\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\"> OSPF, IA <\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\"> OSPF inter area<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">       N1 <\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\"> OSPF NSSA external <\/span><span style=\"color: #FF79C6\">type<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #BD93F9\">1<\/span><span style=\"color: #F8F8F2\">, N2 <\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\"> OSPF NSSA external <\/span><span style=\"color: #FF79C6\">type<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #BD93F9\">2<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">       E1 <\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\"> OSPF external <\/span><span style=\"color: #FF79C6\">type<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #BD93F9\">1<\/span><span style=\"color: #F8F8F2\">, E2 <\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\"> OSPF external <\/span><span style=\"color: #FF79C6\">type<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #BD93F9\">2<\/span><span style=\"color: #F8F8F2\">, E <\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\"> EGP<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">       i <\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\"> ISIS, L1 <\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #FF79C6\">IS-IS<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #FF79C6\">level-<\/span><span style=\"color: #BD93F9\">1<\/span><span style=\"color: #F8F8F2\">, L2 <\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #FF79C6\">IS-IS<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #FF79C6\">level-<\/span><span style=\"color: #BD93F9\">2<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">       ia <\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #FF79C6\">IS-IS<\/span><span style=\"color: #F8F8F2\"> inter area, su <\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #FF79C6\">IS-IS<\/span><span style=\"color: #F8F8F2\"> summary <\/span><span style=\"color: #BD93F9\">null<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #FF79C6\">*<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\"> candidate <\/span><span style=\"color: #FF79C6\">default<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">       U <\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\"> per<\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #8BE9FD\">user<\/span><span style=\"color: #F8F8F2\"> static route, o <\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\"> ODR, L <\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\"> local, G  <\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\"> DAGR, l <\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\"> LISP<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">       A <\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\"> access<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #F8F8F2\">subscriber, a <\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\"> Application route<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">       M <\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\"> mobile route, r <\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\"> RPL, t <\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\"> Traffic Engineering, (!) <\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\"> FRR Backup <\/span><span style=\"color: #8BE9FD\">path<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">Gateway <\/span><span style=\"color: #FF79C6\">of<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #8BE9FD\">last<\/span><span style=\"color: #F8F8F2\"> resort <\/span><span style=\"color: #FF79C6\">is<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #FF79C6\">not<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #FF79C6\">set<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">i L2 <\/span><span style=\"color: #BD93F9\">1.1<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">1.1<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">32<\/span><span style=\"color: #F8F8F2\"> [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">20<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.2<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">6.2<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">02<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">50<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">17<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">                [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">20<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.5<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">6.5<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">02<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">50<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">17<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">2<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">i L2 <\/span><span style=\"color: #BD93F9\">2.2<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">2.2<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">32<\/span><span style=\"color: #F8F8F2\"> [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">20<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.2<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">6.2<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">02<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">50<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">17<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">i L1 <\/span><span style=\"color: #BD93F9\">5.5<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">5.5<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">32<\/span><span style=\"color: #F8F8F2\"> [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">10<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.5<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">6.5<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">03<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">25<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">19<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">2<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">L    <\/span><span style=\"color: #BD93F9\">6.6<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">6.6<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">32<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #FF79C6\">is<\/span><span style=\"color: #F8F8F2\"> directly connected, <\/span><span style=\"color: #BD93F9\">03<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">25<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">26<\/span><span style=\"color: #F8F8F2\">, Loopback0<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">i L1 <\/span><span style=\"color: #BD93F9\">9.9<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">9.9<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">32<\/span><span style=\"color: #F8F8F2\"> [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">30<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.5<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">6.5<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">03<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">25<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">14<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">2<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">                [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">30<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.6<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">10.10<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">03<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">25<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">14<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">3<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">i L2 <\/span><span style=\"color: #BD93F9\">10.1<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">2.0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">24<\/span><span style=\"color: #F8F8F2\"> [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">20<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.2<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">6.2<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">02<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">50<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">17<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">i L2 <\/span><span style=\"color: #BD93F9\">10.1<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">5.0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">24<\/span><span style=\"color: #F8F8F2\"> [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">20<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.5<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">6.5<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">02<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">56<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">15<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">2<\/span><\/span>\n<span class=\"line\"><span style=\"color: #FF79C6\">C<\/span><span style=\"color: #F8F8F2\">    <\/span><span style=\"color: #BD93F9\">10.2<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">6.0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">24<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #FF79C6\">is<\/span><span style=\"color: #F8F8F2\"> directly connected, <\/span><span style=\"color: #BD93F9\">03<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">25<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">26<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">L    <\/span><span style=\"color: #BD93F9\">10.2<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">6.6<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">32<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #FF79C6\">is<\/span><span style=\"color: #F8F8F2\"> directly connected, <\/span><span style=\"color: #BD93F9\">03<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">25<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">26<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><\/span>\n<span class=\"line\"><span style=\"color: #FF79C6\">C<\/span><span style=\"color: #F8F8F2\">    <\/span><span style=\"color: #BD93F9\">10.5<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">6.0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">24<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #FF79C6\">is<\/span><span style=\"color: #F8F8F2\"> directly connected, <\/span><span style=\"color: #BD93F9\">03<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">25<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">26<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">2<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">L    <\/span><span style=\"color: #BD93F9\">10.5<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">6.6<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">32<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #FF79C6\">is<\/span><span style=\"color: #F8F8F2\"> directly connected, <\/span><span style=\"color: #BD93F9\">03<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">25<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">26<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">2<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">i L1 <\/span><span style=\"color: #BD93F9\">10.5<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">9.0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">24<\/span><span style=\"color: #F8F8F2\"> [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">20<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.5<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">6.5<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">03<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">25<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">19<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">2<\/span><\/span>\n<span class=\"line\"><span style=\"color: #FF79C6\">C<\/span><span style=\"color: #F8F8F2\">    <\/span><span style=\"color: #BD93F9\">10.6<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">10.0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">24<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #FF79C6\">is<\/span><span style=\"color: #F8F8F2\"> directly connected, <\/span><span style=\"color: #BD93F9\">03<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">25<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">26<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">3<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">L    <\/span><span style=\"color: #BD93F9\">10.6<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">10.6<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">32<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #FF79C6\">is<\/span><span style=\"color: #F8F8F2\"> directly connected, <\/span><span style=\"color: #BD93F9\">03<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">25<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">26<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">3<\/span><\/span>\n<span class=\"line\"><span style=\"color: #FF79C6\">C<\/span><span style=\"color: #F8F8F2\">    <\/span><span style=\"color: #BD93F9\">10.6<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">11.0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">24<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #FF79C6\">is<\/span><span style=\"color: #F8F8F2\"> directly connected, <\/span><span style=\"color: #BD93F9\">03<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">25<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">26<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">1<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">L    <\/span><span style=\"color: #BD93F9\">10.6<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">11.6<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">32<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #FF79C6\">is<\/span><span style=\"color: #F8F8F2\"> directly connected, <\/span><span style=\"color: #BD93F9\">03<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">25<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">26<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">1<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">i L1 <\/span><span style=\"color: #BD93F9\">10.9<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">10.0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">24<\/span><span style=\"color: #F8F8F2\"> [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">20<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.6<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">10.10<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">03<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">25<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">19<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">3<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">i L1 <\/span><span style=\"color: #BD93F9\">10.10<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">10.10<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">32<\/span><span style=\"color: #F8F8F2\"> [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">20<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.6<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">10.10<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">03<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">25<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">19<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">3<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">O    <\/span><span style=\"color: #BD93F9\">10.10<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">11.0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">24<\/span><span style=\"color: #F8F8F2\"> [<\/span><span style=\"color: #BD93F9\">110<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">2<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.6<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">11.11<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">03<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">18<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">57<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">1<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">O    <\/span><span style=\"color: #BD93F9\">11.11<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">11.11<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">32<\/span><span style=\"color: #F8F8F2\"> [<\/span><span style=\"color: #BD93F9\">110<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">2<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.6<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">11.11<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">03<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">18<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">57<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">1<\/span><\/span>\n<span class=\"line\"><\/span><\/code><\/pre><\/div>\n\n\n\n<h3><span class=\"ez-toc-section\" id=\"Verification_L1_Routers_R9_R10\"><\/span><span style=\"color: #800080;\">Verification L1 Routers (R9 &amp; R10)<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.75rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;line-height:1rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span role=\"button\" tabindex=\"0\" data-code=\"==== R7,R8,R9,R10  (L1)\n\nhostname R10\ninterface Loopback0\n ip address 10.10.10.10 255.255.255.255\n ip router isis 1\n isis circuit-type level-1\n!\ninterface GigabitEthernet0\/0\n ip address 10.10.11.10 255.255.255.0\n ip ospf network point-to-point\n ip ospf 1 area 0\n media-type rj45\n!\ninterface GigabitEthernet0\/2\n ip address 10.9.10.10 255.255.255.0\n ip router isis 1\n isis circuit-type level-1\n!\ninterface GigabitEthernet0\/3\n ip address 10.6.10.10 255.255.255.0\n ip router isis 1\n isis circuit-type level-1\n!\nrouter isis 1\n net 49.0001.0000.0000.0010.00\n is-type level-1\n metric-style wide\n!\nrouter ospf 1\n router-id 10.10.10.10\n!\n\n\" style=\"color:#F8F8F2;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M4.5 12.75l6 6 9-13.5\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M16.5 8.25V6a2.25 2.25 0 00-2.25-2.25H6A2.25 2.25 0 003.75 6v8.25A2.25 2.25 0 006 16.5h2.25m8.25-8.25H18a2.25 2.25 0 012.25 2.25V18A2.25 2.25 0 0118 20.25h-7.5A2.25 2.25 0 018.25 18v-1.5m8.25-8.25h-6a2.25 2.25 0 00-2.25 2.25v6\"><\/path><\/svg><\/span><pre class=\"shiki dracula\" style=\"background-color: #282A36\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #FF79C6\">====<\/span><span style=\"color: #F8F8F2\"> R7,R8,R9,R10  (L1)<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">hostname R10<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">interface Loopback0<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\"> ip address <\/span><span style=\"color: #BD93F9\">10.10<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">10.10<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #BD93F9\">255.255<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">255.255<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\"> ip router isis <\/span><span style=\"color: #BD93F9\">1<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\"> isis circuit<\/span><span style=\"color: #FF79C6\">-type<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #FF79C6\">level-<\/span><span style=\"color: #BD93F9\">1<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">!<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">interface GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\"> ip address <\/span><span style=\"color: #BD93F9\">10.10<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">11.10<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #BD93F9\">255.255<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">255.0<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\"> ip ospf network point<\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\">to<\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\">point<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\"> ip ospf <\/span><span style=\"color: #BD93F9\">1<\/span><span style=\"color: #F8F8F2\"> area <\/span><span style=\"color: #BD93F9\">0<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\"> media<\/span><span style=\"color: #FF79C6\">-type<\/span><span style=\"color: #F8F8F2\"> rj45<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">!<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">interface GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">2<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\"> ip address <\/span><span style=\"color: #BD93F9\">10.9<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">10.10<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #BD93F9\">255.255<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">255.0<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\"> ip router isis <\/span><span style=\"color: #BD93F9\">1<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\"> isis circuit<\/span><span style=\"color: #FF79C6\">-type<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #FF79C6\">level-<\/span><span style=\"color: #BD93F9\">1<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">!<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">interface GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">3<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\"> ip address <\/span><span style=\"color: #BD93F9\">10.6<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">10.10<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #BD93F9\">255.255<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">255.0<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\"> ip router isis <\/span><span style=\"color: #BD93F9\">1<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\"> isis circuit<\/span><span style=\"color: #FF79C6\">-type<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #FF79C6\">level-<\/span><span style=\"color: #BD93F9\">1<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">!<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">router isis <\/span><span style=\"color: #BD93F9\">1<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\"> net <\/span><span style=\"color: #BD93F9\">49.0001<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">0000.0000<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">0010.00<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #FF79C6\">is-type<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #FF79C6\">level-<\/span><span style=\"color: #BD93F9\">1<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\"> metric<\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\">style wide<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">!<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">router ospf <\/span><span style=\"color: #BD93F9\">1<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\"> router<\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\">id <\/span><span style=\"color: #BD93F9\">10.10<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">10.10<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">!<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><\/span><\/code><\/pre><\/div>\n\n\n\n<h3><span class=\"ez-toc-section\" id=\"Verification_OSPF_Router_R11\"><\/span><span style=\"color: #800080;\">Verification OSPF Router (R11)<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.75rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;line-height:1rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span role=\"button\" tabindex=\"0\" data-code=\"==== R11\nR11#sh ip ospf neighbor\n\nNeighbor ID     Pri   State           Dead Time   Address         Interface\n10.10.10.10       0   FULL\/  -        00:00:38    10.10.11.10     GigabitEthernet0\/0\n6.6.6.6           0   FULL\/  -        00:00:37    10.6.11.6       GigabitEthernet0\/1\n\nR11#sh ip route\nCodes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP\n       D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area\n       N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2\n       E1 - OSPF external type 1, E2 - OSPF external type 2\n       i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2\n       ia - IS-IS inter area, * - candidate default, U - per-user static route\n       o - ODR, P - periodic downloaded static route, H - NHRP, l - LISP\n       a - application route\n       + - replicated route, % - next hop override, p - overrides from PfR\n\nGateway of last resort is not set\n\nC        10.6.11.0\/24 is directly connected, GigabitEthernet0\/1\nL        10.6.11.11\/32 is directly connected, GigabitEthernet0\/1\nC        10.10.11.0\/24 is directly connected, GigabitEthernet0\/0\nL        10.10.11.11\/32 is directly connected, GigabitEthernet0\/0\n      11.0.0.0\/32 is subnetted, 1 subnets\nC        11.11.11.11 is directly connected, Loopback0\n\" style=\"color:#F8F8F2;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M4.5 12.75l6 6 9-13.5\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M16.5 8.25V6a2.25 2.25 0 00-2.25-2.25H6A2.25 2.25 0 003.75 6v8.25A2.25 2.25 0 006 16.5h2.25m8.25-8.25H18a2.25 2.25 0 012.25 2.25V18A2.25 2.25 0 0118 20.25h-7.5A2.25 2.25 0 018.25 18v-1.5m8.25-8.25h-6a2.25 2.25 0 00-2.25 2.25v6\"><\/path><\/svg><\/span><pre class=\"shiki dracula\" style=\"background-color: #282A36\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #FF79C6\">====<\/span><span style=\"color: #F8F8F2\"> R11<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">R11#sh ip ospf neighbor<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">Neighbor ID     Pri   State           Dead Time   Address         Interface<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BD93F9\">10.10<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">10.10<\/span><span style=\"color: #F8F8F2\">       <\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #F8F8F2\">   FULL<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #F8F8F2\">  <\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\">        <\/span><span style=\"color: #BD93F9\">00<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">00<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">38<\/span><span style=\"color: #F8F8F2\">    <\/span><span style=\"color: #BD93F9\">10.10<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">11.10<\/span><span style=\"color: #F8F8F2\">     GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BD93F9\">6.6<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">6.6<\/span><span style=\"color: #F8F8F2\">           <\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #F8F8F2\">   FULL<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #F8F8F2\">  <\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\">        <\/span><span style=\"color: #BD93F9\">00<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">00<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">37<\/span><span style=\"color: #F8F8F2\">    <\/span><span style=\"color: #BD93F9\">10.6<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">11.6<\/span><span style=\"color: #F8F8F2\">       GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">1<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">R11#sh ip route<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">Codes: L <\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\"> local, <\/span><span style=\"color: #FF79C6\">C<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\"> connected, S <\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\"> static, R <\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\"> RIP, M <\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\"> mobile, B <\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\"> BGP<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">       D <\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\"> EIGRP, EX <\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\"> EIGRP external, O <\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\"> OSPF, IA <\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\"> OSPF inter area<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">       N1 <\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\"> OSPF NSSA external <\/span><span style=\"color: #FF79C6\">type<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #BD93F9\">1<\/span><span style=\"color: #F8F8F2\">, N2 <\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\"> OSPF NSSA external <\/span><span style=\"color: #FF79C6\">type<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #BD93F9\">2<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">       E1 <\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\"> OSPF external <\/span><span style=\"color: #FF79C6\">type<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #BD93F9\">1<\/span><span style=\"color: #F8F8F2\">, E2 <\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\"> OSPF external <\/span><span style=\"color: #FF79C6\">type<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #BD93F9\">2<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">       i <\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #FF79C6\">IS-IS<\/span><span style=\"color: #F8F8F2\">, su <\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #FF79C6\">IS-IS<\/span><span style=\"color: #F8F8F2\"> summary, L1 <\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #FF79C6\">IS-IS<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #FF79C6\">level-<\/span><span style=\"color: #BD93F9\">1<\/span><span style=\"color: #F8F8F2\">, L2 <\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #FF79C6\">IS-IS<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #FF79C6\">level-<\/span><span style=\"color: #BD93F9\">2<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">       ia <\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #FF79C6\">IS-IS<\/span><span style=\"color: #F8F8F2\"> inter area, <\/span><span style=\"color: #FF79C6\">*<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\"> candidate <\/span><span style=\"color: #FF79C6\">default<\/span><span style=\"color: #F8F8F2\">, U <\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\"> per<\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #8BE9FD\">user<\/span><span style=\"color: #F8F8F2\"> static route<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">       o <\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\"> ODR, P <\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\"> periodic downloaded static route, H <\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\"> NHRP, l <\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\"> LISP<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">       a <\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\"> application route<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">       <\/span><span style=\"color: #FF79C6\">+<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\"> replicated route, % <\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\"> next hop override, p <\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\"> overrides <\/span><span style=\"color: #FF79C6\">from<\/span><span style=\"color: #F8F8F2\"> PfR<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">Gateway <\/span><span style=\"color: #FF79C6\">of<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #8BE9FD\">last<\/span><span style=\"color: #F8F8F2\"> resort <\/span><span style=\"color: #FF79C6\">is<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #FF79C6\">not<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #FF79C6\">set<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #FF79C6\">C<\/span><span style=\"color: #F8F8F2\">        <\/span><span style=\"color: #BD93F9\">10.6<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">11.0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">24<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #FF79C6\">is<\/span><span style=\"color: #F8F8F2\"> directly connected, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">1<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">L        <\/span><span style=\"color: #BD93F9\">10.6<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">11.11<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">32<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #FF79C6\">is<\/span><span style=\"color: #F8F8F2\"> directly connected, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">1<\/span><\/span>\n<span class=\"line\"><span style=\"color: #FF79C6\">C<\/span><span style=\"color: #F8F8F2\">        <\/span><span style=\"color: #BD93F9\">10.10<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">11.0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">24<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #FF79C6\">is<\/span><span style=\"color: #F8F8F2\"> directly connected, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">L        <\/span><span style=\"color: #BD93F9\">10.10<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">11.11<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">32<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #FF79C6\">is<\/span><span style=\"color: #F8F8F2\"> directly connected, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">      <\/span><span style=\"color: #BD93F9\">11.0<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">0.0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">32<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #FF79C6\">is<\/span><span style=\"color: #F8F8F2\"> subnetted, <\/span><span style=\"color: #BD93F9\">1<\/span><span style=\"color: #F8F8F2\"> subnets<\/span><\/span>\n<span class=\"line\"><span style=\"color: #FF79C6\">C<\/span><span style=\"color: #F8F8F2\">        <\/span><span style=\"color: #BD93F9\">11.11<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">11.11<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #FF79C6\">is<\/span><span style=\"color: #F8F8F2\"> directly connected, Loopback0<\/span><\/span>\n<span class=\"line\"><\/span><\/code><\/pre><\/div>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<h2><span class=\"ez-toc-section\" id=\"IS-IS_Redistribution\"><\/span><span style=\"color: #800080;\">IS-IS Redistribution<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>When redistributing routes into IS-IS, the impact depends on whether the routes are injected into L1, L2, or both levels (L1-2). Each IS-IS level utilizes its own <strong>Link-State Database (LSDB)<\/strong> to store and manage routing information. The separation of LSDBs is fundamental to the hierarchical design of IS-IS, supporting scalability and clear demarcation between intra-area (Level 1) and inter-area (Level 2) routing.<\/p>\n<p>In this example I will redistribute the following prefixes from the OSPF router:<\/p>\n<ul>\n<li><strong><span style=\"color: #1ba1e2;\">11.11.11.11\/32 (loopback)<\/span><\/strong><\/li>\n<li><strong><span style=\"color: #1ba1e2;\">100.130.1.0\/24<\/span><\/strong><\/li>\n<li><strong><span style=\"color: #1ba1e2;\">100.130.2.0\/24<\/span><\/strong><\/li>\n<li><strong><span style=\"color: #1ba1e2;\">100.130.3.0\/24<\/span><\/strong><\/li>\n<\/ul>\n<p>The 100.130.x.y subnets are going to be summarized in section 7.<\/p>\n<p><em><strong>Verification of the L1 and L2 database on R6:<\/strong><\/em><\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.75rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;line-height:1rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span role=\"button\" tabindex=\"0\" data-code=\"RP\/0\/0\/CPU0:R6#sh isis database R6.00-00 detail                \n                    \nIS-IS 1 (Level-1) Link State Database\nLSPID                 LSP Seq Num  LSP Checksum  LSP Holdtime  ATT\/P\/OL\nR6.00-00            * 0x00000067   0x13c1        502             1\/0\/0\n  Area Address:   49.0001\n  Metric: 10         IS-Extended R5.03\n  Metric: 10         IS-Extended R6.05\n  NLPID:          0xcc\n  IP Address:     6.6.6.6\n  Metric: 0          IP-Extended 6.6.6.6\/32\n  Metric: 10         IP-Extended 10.5.6.0\/24\n  Metric: 10         IP-Extended 10.6.10.0\/24\n  Metric: 0          IP-Extended 10.6.11.0\/24\n  Metric: 0          IP-Extended 10.10.11.0\/24\n  Metric: 0          IP-Extended 11.11.11.11\/32\n  Metric: 0          IP-Extended 100.130.1.0\/24\n  Metric: 0          IP-Extended 100.130.2.0\/24\n  Metric: 0          IP-Extended 100.130.3.0\/24\n  Hostname:       R6\n\nIS-IS 1 (Level-2) Link State Database\nLSPID                 LSP Seq Num  LSP Checksum  LSP Holdtime  ATT\/P\/OL\nR6.00-00            * 0x0000006b   0x263b        828             0\/0\/0\n  Area Address:   49.0001\n  Metric: 10         IS-Extended R5.03\n  Metric: 10         IS-Extended R6.01\n  NLPID:          0xcc\n  IP Address:     6.6.6.6\n  Metric: 10         IP-Extended 5.5.5.5\/32\n  Metric: 0          IP-Extended 6.6.6.6\/32\n  Metric: 30         IP-Extended 9.9.9.9\/32\n  Metric: 10         IP-Extended 10.2.6.0\/24\n  Metric: 10         IP-Extended 10.5.6.0\/24\n  Metric: 20         IP-Extended 10.5.9.0\/24\n  Metric: 10         IP-Extended 10.6.10.0\/24\n  Metric: 20         IP-Extended 10.9.10.0\/24\n  Metric: 20         IP-Extended 10.10.10.10\/32\n  Metric: 10         IP-Extended 10.10.11.0\/24\n  Hostname:       R6\n                    \n\" style=\"color:#F8F8F2;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M4.5 12.75l6 6 9-13.5\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M16.5 8.25V6a2.25 2.25 0 00-2.25-2.25H6A2.25 2.25 0 003.75 6v8.25A2.25 2.25 0 006 16.5h2.25m8.25-8.25H18a2.25 2.25 0 012.25 2.25V18A2.25 2.25 0 0118 20.25h-7.5A2.25 2.25 0 018.25 18v-1.5m8.25-8.25h-6a2.25 2.25 0 00-2.25 2.25v6\"><\/path><\/svg><\/span><pre class=\"shiki dracula\" style=\"background-color: #282A36\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #F8F8F2\">RP<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #F8F8F2\">CPU0:R6#sh isis database R6.<\/span><span style=\"color: #BD93F9\">00<\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #BD93F9\">00<\/span><span style=\"color: #F8F8F2\"> detail                <\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">                    <\/span><\/span>\n<span class=\"line\"><span style=\"color: #FF79C6\">IS-IS<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #BD93F9\">1<\/span><span style=\"color: #F8F8F2\"> (<\/span><span style=\"color: #FF79C6\">Level-<\/span><span style=\"color: #BD93F9\">1<\/span><span style=\"color: #F8F8F2\">) Link State Database<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">LSPID                 LSP Seq Num  LSP Checksum  LSP Holdtime  ATT<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #F8F8F2\">P<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #F8F8F2\">OL<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">R6.<\/span><span style=\"color: #BD93F9\">00<\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #BD93F9\">00<\/span><span style=\"color: #F8F8F2\">            <\/span><span style=\"color: #FF79C6\">*<\/span><span style=\"color: #F8F8F2\"> 0x00000067   0x13c1        <\/span><span style=\"color: #BD93F9\">502<\/span><span style=\"color: #F8F8F2\">             <\/span><span style=\"color: #BD93F9\">1<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">  Area Address:   <\/span><span style=\"color: #BD93F9\">49.0001<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">  Metric: <\/span><span style=\"color: #BD93F9\">10<\/span><span style=\"color: #F8F8F2\">         <\/span><span style=\"color: #FF79C6\">IS-<\/span><span style=\"color: #F8F8F2\">Extended R5.<\/span><span style=\"color: #BD93F9\">03<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">  Metric: <\/span><span style=\"color: #BD93F9\">10<\/span><span style=\"color: #F8F8F2\">         <\/span><span style=\"color: #FF79C6\">IS-<\/span><span style=\"color: #F8F8F2\">Extended R6.<\/span><span style=\"color: #BD93F9\">05<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">  NLPID:          0xcc<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">  IP Address:     <\/span><span style=\"color: #BD93F9\">6.6<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">6.6<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">  Metric: <\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #F8F8F2\">          IP<\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\">Extended <\/span><span style=\"color: #BD93F9\">6.6<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">6.6<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">32<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">  Metric: <\/span><span style=\"color: #BD93F9\">10<\/span><span style=\"color: #F8F8F2\">         IP<\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\">Extended <\/span><span style=\"color: #BD93F9\">10.5<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">6.0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">24<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">  Metric: <\/span><span style=\"color: #BD93F9\">10<\/span><span style=\"color: #F8F8F2\">         IP<\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\">Extended <\/span><span style=\"color: #BD93F9\">10.6<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">10.0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">24<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">  Metric: <\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #F8F8F2\">          IP<\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\">Extended <\/span><span style=\"color: #BD93F9\">10.6<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">11.0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">24<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">  Metric: <\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #F8F8F2\">          IP<\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\">Extended <\/span><span style=\"color: #BD93F9\">10.10<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">11.0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">24<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">  Metric: <\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #F8F8F2\">          IP<\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\">Extended <\/span><span style=\"color: #BD93F9\">11.11<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">11.11<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">32<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">  Metric: <\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #F8F8F2\">          IP<\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\">Extended <\/span><span style=\"color: #BD93F9\">100.130<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">1.0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">24<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">  Metric: <\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #F8F8F2\">          IP<\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\">Extended <\/span><span style=\"color: #BD93F9\">100.130<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">2.0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">24<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">  Metric: <\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #F8F8F2\">          IP<\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\">Extended <\/span><span style=\"color: #BD93F9\">100.130<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">3.0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">24<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">  Hostname:       R6<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #FF79C6\">IS-IS<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #BD93F9\">1<\/span><span style=\"color: #F8F8F2\"> (<\/span><span style=\"color: #FF79C6\">Level-<\/span><span style=\"color: #BD93F9\">2<\/span><span style=\"color: #F8F8F2\">) Link State Database<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">LSPID                 LSP Seq Num  LSP Checksum  LSP Holdtime  ATT<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #F8F8F2\">P<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #F8F8F2\">OL<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">R6.<\/span><span style=\"color: #BD93F9\">00<\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #BD93F9\">00<\/span><span style=\"color: #F8F8F2\">            <\/span><span style=\"color: #FF79C6\">*<\/span><span style=\"color: #F8F8F2\"> 0x0000006b   0x263b        <\/span><span style=\"color: #BD93F9\">828<\/span><span style=\"color: #F8F8F2\">             <\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">  Area Address:   <\/span><span style=\"color: #BD93F9\">49.0001<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">  Metric: <\/span><span style=\"color: #BD93F9\">10<\/span><span style=\"color: #F8F8F2\">         <\/span><span style=\"color: #FF79C6\">IS-<\/span><span style=\"color: #F8F8F2\">Extended R5.<\/span><span style=\"color: #BD93F9\">03<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">  Metric: <\/span><span style=\"color: #BD93F9\">10<\/span><span style=\"color: #F8F8F2\">         <\/span><span style=\"color: #FF79C6\">IS-<\/span><span style=\"color: #F8F8F2\">Extended R6.<\/span><span style=\"color: #BD93F9\">01<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">  NLPID:          0xcc<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">  IP Address:     <\/span><span style=\"color: #BD93F9\">6.6<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">6.6<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">  Metric: <\/span><span style=\"color: #BD93F9\">10<\/span><span style=\"color: #F8F8F2\">         IP<\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\">Extended <\/span><span style=\"color: #BD93F9\">5.5<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">5.5<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">32<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">  Metric: <\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #F8F8F2\">          IP<\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\">Extended <\/span><span style=\"color: #BD93F9\">6.6<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">6.6<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">32<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">  Metric: <\/span><span style=\"color: #BD93F9\">30<\/span><span style=\"color: #F8F8F2\">         IP<\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\">Extended <\/span><span style=\"color: #BD93F9\">9.9<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">9.9<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">32<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">  Metric: <\/span><span style=\"color: #BD93F9\">10<\/span><span style=\"color: #F8F8F2\">         IP<\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\">Extended <\/span><span style=\"color: #BD93F9\">10.2<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">6.0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">24<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">  Metric: <\/span><span style=\"color: #BD93F9\">10<\/span><span style=\"color: #F8F8F2\">         IP<\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\">Extended <\/span><span style=\"color: #BD93F9\">10.5<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">6.0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">24<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">  Metric: <\/span><span style=\"color: #BD93F9\">20<\/span><span style=\"color: #F8F8F2\">         IP<\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\">Extended <\/span><span style=\"color: #BD93F9\">10.5<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">9.0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">24<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">  Metric: <\/span><span style=\"color: #BD93F9\">10<\/span><span style=\"color: #F8F8F2\">         IP<\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\">Extended <\/span><span style=\"color: #BD93F9\">10.6<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">10.0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">24<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">  Metric: <\/span><span style=\"color: #BD93F9\">20<\/span><span style=\"color: #F8F8F2\">         IP<\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\">Extended <\/span><span style=\"color: #BD93F9\">10.9<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">10.0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">24<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">  Metric: <\/span><span style=\"color: #BD93F9\">20<\/span><span style=\"color: #F8F8F2\">         IP<\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\">Extended <\/span><span style=\"color: #BD93F9\">10.10<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">10.10<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">32<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">  Metric: <\/span><span style=\"color: #BD93F9\">10<\/span><span style=\"color: #F8F8F2\">         IP<\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\">Extended <\/span><span style=\"color: #BD93F9\">10.10<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">11.0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">24<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">  Hostname:       R6<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">                    <\/span><\/span>\n<span class=\"line\"><\/span><\/code><\/pre><\/div>\n\n\n\n<h3><span class=\"ez-toc-section\" id=\"Redistribution_into_IS-IS_Level-1\"><\/span><strong>Redistribution into IS-IS Level-1<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><strong><em>router isis 1 address-family ipv4 unicast redistribute ospf 1 level-1<\/em><\/strong><\/p>\n<p><a href=\"https:\/\/www.quisted.net\/wp-content\/uploads\/2024\/11\/redist-lvl1-2.png\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-2960 size-full\" src=\"https:\/\/www.quisted.net\/wp-content\/uploads\/2024\/11\/redist-lvl1-2.png\" alt=\"\" width=\"847\" height=\"257\" srcset=\"https:\/\/www.quisted.net\/wp-content\/uploads\/2024\/11\/redist-lvl1-2.png 847w, https:\/\/www.quisted.net\/wp-content\/uploads\/2024\/11\/redist-lvl1-2-300x91.png 300w, https:\/\/www.quisted.net\/wp-content\/uploads\/2024\/11\/redist-lvl1-2-768x233.png 768w\" sizes=\"auto, (max-width: 847px) 100vw, 847px\" \/><\/a><\/p>\n<p>Redistributing routes into Level 1 (L1) confines those routes to the local IS-IS area. These redistributed routes are advertised to all L1 routers within the same area, ensuring that all routers in the local topology have visibility into them. However, these routes do not propagate beyond the boundaries of the area, keeping them invisible to other areas in the IS-IS domain.<\/p>\n<p>When an L1 router needs to communicate with destinations outside its area, it typically relies on a default route provided by an L1-2 router. This approach is particularly useful for injecting external routes that are relevant only within a specific area. By limiting the scope of redistribution to L1, the L2 topology is kept cleaner, as unnecessary external routes do not pollute the L2 backbone.<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.75rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;line-height:1rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span role=\"button\" tabindex=\"0\" data-code=\"==== R6\n\nrouter isis 1\n address-family ipv4 unicast\n  redistribute ospf 1 level-1\n\n==== R10 (LEVEL 1 Router)\n\nR10#sh route\n\n-- Redistributed OSPF routes from R6\n\ni L1     11.11.11.11 [115\/10] via 10.6.10.6, 00:17:46, GigabitEthernet0\/3\n      100.0.0.0\/24 is subnetted, 3 subnets\ni L1     100.130.1.0 [115\/10] via 10.6.10.6, 00:17:46, GigabitEthernet0\/3\ni L1     100.130.2.0 [115\/10] via 10.6.10.6, 00:17:46, GigabitEthernet0\/3\ni L1     100.130.3.0 [115\/10] via 10.6.10.6, 00:17:46, GigabitEthernet0\/3\n\n==== R2 (LEVEL 2 Router - L1 propagated into L2)\n\ni L2 11.11.11.11\/32 [115\/30] via 10.2.6.6, 00:23:16, GigabitEthernet0\/0\/0\/1\n                    [115\/30] via 10.1.2.1, 00:23:16, GigabitEthernet0\/0\/0\/5\ni L2 100.130.1.0\/24 [115\/30] via 10.2.6.6, 01:33:23, GigabitEthernet0\/0\/0\/1\n                    [115\/30] via 10.1.2.1, 01:33:23, GigabitEthernet0\/0\/0\/5\ni L2 100.130.2.0\/24 [115\/30] via 10.2.6.6, 01:33:23, GigabitEthernet0\/0\/0\/1\n                    [115\/30] via 10.1.2.1, 01:33:23, GigabitEthernet0\/0\/0\/5\ni L2 100.130.3.0\/24 [115\/30] via 10.2.6.6, 01:33:23, GigabitEthernet0\/0\/0\/1\n                    [115\/30] via 10.1.2.1, 01:33:23, GigabitEthernet0\/0\/0\/5\n                    \n\" style=\"color:#F8F8F2;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M4.5 12.75l6 6 9-13.5\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M16.5 8.25V6a2.25 2.25 0 00-2.25-2.25H6A2.25 2.25 0 003.75 6v8.25A2.25 2.25 0 006 16.5h2.25m8.25-8.25H18a2.25 2.25 0 012.25 2.25V18A2.25 2.25 0 0118 20.25h-7.5A2.25 2.25 0 018.25 18v-1.5m8.25-8.25h-6a2.25 2.25 0 00-2.25 2.25v6\"><\/path><\/svg><\/span><pre class=\"shiki dracula\" style=\"background-color: #282A36\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #FF79C6\">====<\/span><span style=\"color: #F8F8F2\"> R6<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">router isis <\/span><span style=\"color: #BD93F9\">1<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\"> address<\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\">family ipv4 unicast<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">  redistribute ospf <\/span><span style=\"color: #BD93F9\">1<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #FF79C6\">level-<\/span><span style=\"color: #BD93F9\">1<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #FF79C6\">====<\/span><span style=\"color: #F8F8F2\"> R10 (<\/span><span style=\"color: #FF79C6\">LEVEL<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #BD93F9\">1<\/span><span style=\"color: #F8F8F2\"> Router)<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">R10#sh route<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #6272A4\">-- Redistributed OSPF routes from R6<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">i L1     <\/span><span style=\"color: #BD93F9\">11.11<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">11.11<\/span><span style=\"color: #F8F8F2\"> [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">10<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.6<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">10.6<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">00<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">17<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">46<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">3<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">      <\/span><span style=\"color: #BD93F9\">100.0<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">0.0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">24<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #FF79C6\">is<\/span><span style=\"color: #F8F8F2\"> subnetted, <\/span><span style=\"color: #BD93F9\">3<\/span><span style=\"color: #F8F8F2\"> subnets<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">i L1     <\/span><span style=\"color: #BD93F9\">100.130<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">1.0<\/span><span style=\"color: #F8F8F2\"> [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">10<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.6<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">10.6<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">00<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">17<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">46<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">3<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">i L1     <\/span><span style=\"color: #BD93F9\">100.130<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">2.0<\/span><span style=\"color: #F8F8F2\"> [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">10<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.6<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">10.6<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">00<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">17<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">46<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">3<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">i L1     <\/span><span style=\"color: #BD93F9\">100.130<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">3.0<\/span><span style=\"color: #F8F8F2\"> [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">10<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.6<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">10.6<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">00<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">17<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">46<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">3<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #FF79C6\">====<\/span><span style=\"color: #F8F8F2\"> R2 (<\/span><span style=\"color: #FF79C6\">LEVEL<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #BD93F9\">2<\/span><span style=\"color: #F8F8F2\"> Router <\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\"> L1 propagated <\/span><span style=\"color: #FF79C6\">into<\/span><span style=\"color: #F8F8F2\"> L2)<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">i L2 <\/span><span style=\"color: #BD93F9\">11.11<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">11.11<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">32<\/span><span style=\"color: #F8F8F2\"> [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">30<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.2<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">6.6<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">00<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">23<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">16<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">1<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">                    [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">30<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.1<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">2.1<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">00<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">23<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">16<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">5<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">i L2 <\/span><span style=\"color: #BD93F9\">100.130<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">1.0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">24<\/span><span style=\"color: #F8F8F2\"> [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">30<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.2<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">6.6<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">01<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">33<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">23<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">1<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">                    [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">30<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.1<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">2.1<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">01<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">33<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">23<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">5<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">i L2 <\/span><span style=\"color: #BD93F9\">100.130<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">2.0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">24<\/span><span style=\"color: #F8F8F2\"> [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">30<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.2<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">6.6<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">01<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">33<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">23<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">1<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">                    [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">30<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.1<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">2.1<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">01<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">33<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">23<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">5<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">i L2 <\/span><span style=\"color: #BD93F9\">100.130<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">3.0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">24<\/span><span style=\"color: #F8F8F2\"> [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">30<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.2<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">6.6<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">01<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">33<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">23<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">1<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">                    [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">30<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.1<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">2.1<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">01<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">33<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">23<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">5<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">                    <\/span><\/span>\n<span class=\"line\"><\/span><\/code><\/pre><\/div>\n\n\n\n<h3><span class=\"ez-toc-section\" id=\"Redistribution_into_IS-IS_Level-2\"><\/span><strong>Redistribution into IS-IS Level-2<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><strong><em>router isis 1 address-family ipv4 unicast redistribute ospf 1 level-2<\/em><\/strong><\/p>\n<p><a href=\"https:\/\/www.quisted.net\/wp-content\/uploads\/2024\/11\/redist-lvl2-1.png\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-2959 size-full\" src=\"https:\/\/www.quisted.net\/wp-content\/uploads\/2024\/11\/redist-lvl2-1.png\" alt=\"\" width=\"847\" height=\"257\" srcset=\"https:\/\/www.quisted.net\/wp-content\/uploads\/2024\/11\/redist-lvl2-1.png 847w, https:\/\/www.quisted.net\/wp-content\/uploads\/2024\/11\/redist-lvl2-1-300x91.png 300w, https:\/\/www.quisted.net\/wp-content\/uploads\/2024\/11\/redist-lvl2-1-768x233.png 768w\" sizes=\"auto, (max-width: 847px) 100vw, 847px\" \/><\/a><\/p>\n<p>When routes are redistributed into Level 2 (L2), they are injected into the IS-IS backbone and become accessible across the entire IS-IS domain. These routes are propagated by L2 routers, ensuring that they are visible in all areas that participate in L2 routing. This form of redistribution is most effective when the routes need to be available across multiple areas or the entire domain. It is often employed when connecting different IS-IS areas or importing routes from external routing domains into IS-IS. Since L2 serves as the backbone for inter-area communication, routes injected at this level achieve global visibility within the IS-IS domain, making L2 redistribution ideal for sharing broadly relevant routing information.<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.75rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;line-height:1rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span role=\"button\" tabindex=\"0\" data-code=\"==== R6\n\nrouter isis 1\n address-family ipv4 unicast\n  redistribute ospf 1 level-2\n\n==== R2 \n\nRP\/0\/0\/CPU0:R2#sh route isis\nThu Nov 28 10:26:59.234 UTC\n\ni L2 1.1.1.1\/32 [115\/10] via 10.1.2.1, 18:38:02, GigabitEthernet0\/0\/0\/5\ni L2 5.5.5.5\/32 [115\/20] via 10.1.2.1, 18:37:54, GigabitEthernet0\/0\/0\/5\n                [115\/20] via 10.2.6.6, 18:37:54, GigabitEthernet0\/0\/0\/1\ni L2 6.6.6.6\/32 [115\/10] via 10.2.6.6, 18:38:02, GigabitEthernet0\/0\/0\/1\ni L2 9.9.9.9\/32 [115\/40] via 10.1.2.1, 18:37:54, GigabitEthernet0\/0\/0\/5\n                [115\/40] via 10.2.6.6, 18:37:54, GigabitEthernet0\/0\/0\/1\ni L2 10.1.5.0\/24 [115\/20] via 10.1.2.1, 18:38:02, GigabitEthernet0\/0\/0\/5\ni L2 10.5.6.0\/24 [115\/20] via 10.2.6.6, 18:38:02, GigabitEthernet0\/0\/0\/1\ni L2 10.5.9.0\/24 [115\/30] via 10.1.2.1, 18:37:54, GigabitEthernet0\/0\/0\/5\n                 [115\/30] via 10.2.6.6, 18:37:54, GigabitEthernet0\/0\/0\/1\ni L2 10.6.10.0\/24 [115\/20] via 10.2.6.6, 18:38:02, GigabitEthernet0\/0\/0\/1\ni L2 10.6.11.0\/24 [115\/30] via 10.1.2.1, 14:57:32, GigabitEthernet0\/0\/0\/5\n                  [115\/30] via 10.2.6.6, 14:57:32, GigabitEthernet0\/0\/0\/1\ni L2 10.9.10.0\/24 [115\/30] via 10.2.6.6, 18:38:02, GigabitEthernet0\/0\/0\/1\ni L2 10.10.10.10\/32 [115\/30] via 10.2.6.6, 18:38:02, GigabitEthernet0\/0\/0\/1\ni L2 10.10.11.0\/24 [115\/30] via 10.1.2.1, 14:57:32, GigabitEthernet0\/0\/0\/5\n                   [115\/30] via 10.2.6.6, 14:57:32, GigabitEthernet0\/0\/0\/1\n\n==== L2 routes from OSPF\n\ni L2 11.11.11.11\/32 [115\/30] via 10.1.2.1, 14:57:32, GigabitEthernet0\/0\/0\/5\n                    [115\/30] via 10.2.6.6, 14:57:32, GigabitEthernet0\/0\/0\/1\ni L2 100.130.1.0\/24 [115\/30] via 10.1.2.1, 16:07:39, GigabitEthernet0\/0\/0\/5\n                    [115\/30] via 10.2.6.6, 16:07:39, GigabitEthernet0\/0\/0\/1\ni L2 100.130.2.0\/24 [115\/30] via 10.1.2.1, 16:07:39, GigabitEthernet0\/0\/0\/5\n                    [115\/30] via 10.2.6.6, 16:07:39, GigabitEthernet0\/0\/0\/1\ni L2 100.130.3.0\/24 [115\/30] via 10.1.2.1, 16:07:39, GigabitEthernet0\/0\/0\/5\n                    [115\/30] via 10.2.6.6, 16:07:39, GigabitEthernet0\/0\/0\/1\n\n\" style=\"color:#F8F8F2;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M4.5 12.75l6 6 9-13.5\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M16.5 8.25V6a2.25 2.25 0 00-2.25-2.25H6A2.25 2.25 0 003.75 6v8.25A2.25 2.25 0 006 16.5h2.25m8.25-8.25H18a2.25 2.25 0 012.25 2.25V18A2.25 2.25 0 0118 20.25h-7.5A2.25 2.25 0 018.25 18v-1.5m8.25-8.25h-6a2.25 2.25 0 00-2.25 2.25v6\"><\/path><\/svg><\/span><pre class=\"shiki dracula\" style=\"background-color: #282A36\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #FF79C6\">====<\/span><span style=\"color: #F8F8F2\"> R6<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">router isis <\/span><span style=\"color: #BD93F9\">1<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\"> address<\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\">family ipv4 unicast<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">  redistribute ospf <\/span><span style=\"color: #BD93F9\">1<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #FF79C6\">level-<\/span><span style=\"color: #BD93F9\">2<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #FF79C6\">====<\/span><span style=\"color: #F8F8F2\"> R2 <\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">RP<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #F8F8F2\">CPU0:R2#sh route isis<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">Thu Nov <\/span><span style=\"color: #BD93F9\">28<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #BD93F9\">10<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">26<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">59.234<\/span><span style=\"color: #F8F8F2\"> UTC<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">i L2 <\/span><span style=\"color: #BD93F9\">1.1<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">1.1<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">32<\/span><span style=\"color: #F8F8F2\"> [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">10<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.1<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">2.1<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">18<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">38<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">02<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">5<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">i L2 <\/span><span style=\"color: #BD93F9\">5.5<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">5.5<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">32<\/span><span style=\"color: #F8F8F2\"> [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">20<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.1<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">2.1<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">18<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">37<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">54<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">5<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">                [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">20<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.2<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">6.6<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">18<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">37<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">54<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">1<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">i L2 <\/span><span style=\"color: #BD93F9\">6.6<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">6.6<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">32<\/span><span style=\"color: #F8F8F2\"> [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">10<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.2<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">6.6<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">18<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">38<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">02<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">1<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">i L2 <\/span><span style=\"color: #BD93F9\">9.9<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">9.9<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">32<\/span><span style=\"color: #F8F8F2\"> [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">40<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.1<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">2.1<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">18<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">37<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">54<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">5<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">                [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">40<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.2<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">6.6<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">18<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">37<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">54<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">1<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">i L2 <\/span><span style=\"color: #BD93F9\">10.1<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">5.0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">24<\/span><span style=\"color: #F8F8F2\"> [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">20<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.1<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">2.1<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">18<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">38<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">02<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">5<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">i L2 <\/span><span style=\"color: #BD93F9\">10.5<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">6.0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">24<\/span><span style=\"color: #F8F8F2\"> [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">20<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.2<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">6.6<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">18<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">38<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">02<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">1<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">i L2 <\/span><span style=\"color: #BD93F9\">10.5<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">9.0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">24<\/span><span style=\"color: #F8F8F2\"> [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">30<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.1<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">2.1<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">18<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">37<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">54<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">5<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">                 [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">30<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.2<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">6.6<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">18<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">37<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">54<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">1<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">i L2 <\/span><span style=\"color: #BD93F9\">10.6<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">10.0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">24<\/span><span style=\"color: #F8F8F2\"> [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">20<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.2<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">6.6<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">18<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">38<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">02<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">1<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">i L2 <\/span><span style=\"color: #BD93F9\">10.6<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">11.0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">24<\/span><span style=\"color: #F8F8F2\"> [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">30<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.1<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">2.1<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">14<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">57<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">32<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">5<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">                  [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">30<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.2<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">6.6<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">14<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">57<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">32<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">1<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">i L2 <\/span><span style=\"color: #BD93F9\">10.9<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">10.0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">24<\/span><span style=\"color: #F8F8F2\"> [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">30<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.2<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">6.6<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">18<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">38<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">02<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">1<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">i L2 <\/span><span style=\"color: #BD93F9\">10.10<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">10.10<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">32<\/span><span style=\"color: #F8F8F2\"> [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">30<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.2<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">6.6<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">18<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">38<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">02<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">1<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">i L2 <\/span><span style=\"color: #BD93F9\">10.10<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">11.0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">24<\/span><span style=\"color: #F8F8F2\"> [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">30<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.1<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">2.1<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">14<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">57<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">32<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">5<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">                   [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">30<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.2<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">6.6<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">14<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">57<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">32<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">1<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #FF79C6\">====<\/span><span style=\"color: #F8F8F2\"> L2 routes <\/span><span style=\"color: #FF79C6\">from<\/span><span style=\"color: #F8F8F2\"> OSPF<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">i L2 <\/span><span style=\"color: #BD93F9\">11.11<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">11.11<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">32<\/span><span style=\"color: #F8F8F2\"> [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">30<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.1<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">2.1<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">14<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">57<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">32<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">5<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">                    [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">30<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.2<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">6.6<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">14<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">57<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">32<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">1<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">i L2 <\/span><span style=\"color: #BD93F9\">100.130<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">1.0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">24<\/span><span style=\"color: #F8F8F2\"> [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">30<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.1<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">2.1<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">16<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">07<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">39<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">5<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">                    [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">30<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.2<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">6.6<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">16<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">07<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">39<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">1<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">i L2 <\/span><span style=\"color: #BD93F9\">100.130<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">2.0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">24<\/span><span style=\"color: #F8F8F2\"> [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">30<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.1<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">2.1<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">16<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">07<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">39<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">5<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">                    [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">30<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.2<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">6.6<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">16<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">07<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">39<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">1<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">i L2 <\/span><span style=\"color: #BD93F9\">100.130<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">3.0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">24<\/span><span style=\"color: #F8F8F2\"> [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">30<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.1<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">2.1<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">16<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">07<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">39<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">5<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">                    [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">30<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.2<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">6.6<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">16<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">07<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">39<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">1<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><\/span><\/code><\/pre><\/div>\n\n\n\n<h3><span class=\"ez-toc-section\" id=\"Redistribution_into_IS-IS_Level-1-2\"><\/span><strong>Redistribution into IS-IS Level-1-2<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><strong><em>router isis 1 address-family ipv4 unicast redistribute ospf 1 level-1-2<\/em><\/strong><\/p>\n<p><a href=\"https:\/\/www.quisted.net\/wp-content\/uploads\/2024\/11\/redist-lvl1-2-1.png\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-2980 size-full\" src=\"https:\/\/www.quisted.net\/wp-content\/uploads\/2024\/11\/redist-lvl1-2-1.png\" alt=\"\" width=\"847\" height=\"257\" srcset=\"https:\/\/www.quisted.net\/wp-content\/uploads\/2024\/11\/redist-lvl1-2-1.png 847w, https:\/\/www.quisted.net\/wp-content\/uploads\/2024\/11\/redist-lvl1-2-1-300x91.png 300w, https:\/\/www.quisted.net\/wp-content\/uploads\/2024\/11\/redist-lvl1-2-1-768x233.png 768w\" sizes=\"auto, (max-width: 847px) 100vw, 847px\" \/><\/a><\/p>\n<p>Redistribution into Level 1-2 (L1-2) involves injecting routes into both the L1 and L2 levels simultaneously. In this scenario, the routes are advertised locally within the area (L1) and across the IS-IS backbone (L2). L1-2 routers play a critical role here, functioning as intermediaries to ensure that routes are visible both intra-area and inter-area. This dual-level redistribution is particularly useful for scenarios where routes need comprehensive visibility, both within their originating area and across the broader IS-IS domain. It is commonly used when transitioning between areas or when flexibility in route propagation is required. By ensuring that redistributed routes reach both local and global scopes, L1-2 redistribution provides a balanced and versatile approach to route injection. <br \/>When both L1 and L2 routes are available, IS-IS path selection takes place.\u00a0<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.75rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;line-height:1rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span role=\"button\" tabindex=\"0\" data-code=\"==== R6\n\nrouter isis 1\n address-family ipv4 unicast\n  redistribute ospf 1 level-1-2\n\n\n\n==== L2 routes from OSPF\n\ni L2 11.11.11.11\/32 [115\/30] via 10.1.2.1, 14:57:32, GigabitEthernet0\/0\/0\/5\n                    [115\/30] via 10.2.6.6, 14:57:32, GigabitEthernet0\/0\/0\/1\ni L2 100.130.1.0\/24 [115\/30] via 10.1.2.1, 16:07:39, GigabitEthernet0\/0\/0\/5\n                    [115\/30] via 10.2.6.6, 16:07:39, GigabitEthernet0\/0\/0\/1\ni L2 100.130.2.0\/24 [115\/30] via 10.1.2.1, 16:07:39, GigabitEthernet0\/0\/0\/5\n                    [115\/30] via 10.2.6.6, 16:07:39, GigabitEthernet0\/0\/0\/1\ni L2 100.130.3.0\/24 [115\/30] via 10.1.2.1, 16:07:39, GigabitEthernet0\/0\/0\/5\n                    [115\/30] via 10.2.6.6, 16:07:39, GigabitEthernet0\/0\/0\/1\n\n\" style=\"color:#F8F8F2;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M4.5 12.75l6 6 9-13.5\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M16.5 8.25V6a2.25 2.25 0 00-2.25-2.25H6A2.25 2.25 0 003.75 6v8.25A2.25 2.25 0 006 16.5h2.25m8.25-8.25H18a2.25 2.25 0 012.25 2.25V18A2.25 2.25 0 0118 20.25h-7.5A2.25 2.25 0 018.25 18v-1.5m8.25-8.25h-6a2.25 2.25 0 00-2.25 2.25v6\"><\/path><\/svg><\/span><pre class=\"shiki dracula\" style=\"background-color: #282A36\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #FF79C6\">====<\/span><span style=\"color: #F8F8F2\"> R6<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">router isis <\/span><span style=\"color: #BD93F9\">1<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\"> address<\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\">family ipv4 unicast<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">  redistribute ospf <\/span><span style=\"color: #BD93F9\">1<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #FF79C6\">level-<\/span><span style=\"color: #BD93F9\">1<\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #BD93F9\">2<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #FF79C6\">====<\/span><span style=\"color: #F8F8F2\"> L2 routes <\/span><span style=\"color: #FF79C6\">from<\/span><span style=\"color: #F8F8F2\"> OSPF<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">i L2 <\/span><span style=\"color: #BD93F9\">11.11<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">11.11<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">32<\/span><span style=\"color: #F8F8F2\"> [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">30<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.1<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">2.1<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">14<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">57<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">32<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">5<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">                    [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">30<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.2<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">6.6<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">14<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">57<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">32<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">1<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">i L2 <\/span><span style=\"color: #BD93F9\">100.130<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">1.0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">24<\/span><span style=\"color: #F8F8F2\"> [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">30<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.1<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">2.1<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">16<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">07<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">39<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">5<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">                    [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">30<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.2<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">6.6<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">16<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">07<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">39<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">1<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">i L2 <\/span><span style=\"color: #BD93F9\">100.130<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">2.0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">24<\/span><span style=\"color: #F8F8F2\"> [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">30<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.1<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">2.1<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">16<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">07<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">39<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">5<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">                    [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">30<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.2<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">6.6<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">16<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">07<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">39<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">1<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">i L2 <\/span><span style=\"color: #BD93F9\">100.130<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">3.0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">24<\/span><span style=\"color: #F8F8F2\"> [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">30<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.1<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">2.1<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">16<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">07<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">39<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">5<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">                    [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">30<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.2<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">6.6<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">16<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">07<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">39<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">1<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><\/span><\/code><\/pre><\/div>\n<\/div><\/div>\n\n\n\n<h2><span class=\"ez-toc-section\" id=\"IS-IS_Path_Selection\"><\/span><span style=\"color: #800080;\">IS-IS Path Selection<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>In IS-IS path selection, when both Level 1 (L1) and Level 2 (L2) routes are available, the protocol prioritizes the level of the route based on the network topology and routing logic;<\/p>\n<h2><a href=\"https:\/\/www.quisted.net\/wp-content\/uploads\/2024\/11\/pathselection-1.png\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-2977 size-full\" src=\"https:\/\/www.quisted.net\/wp-content\/uploads\/2024\/11\/pathselection-1.png\" alt=\"\" width=\"1644\" height=\"967\" srcset=\"https:\/\/www.quisted.net\/wp-content\/uploads\/2024\/11\/pathselection-1.png 1644w, https:\/\/www.quisted.net\/wp-content\/uploads\/2024\/11\/pathselection-1-300x176.png 300w, https:\/\/www.quisted.net\/wp-content\/uploads\/2024\/11\/pathselection-1-1024x602.png 1024w, https:\/\/www.quisted.net\/wp-content\/uploads\/2024\/11\/pathselection-1-768x452.png 768w, https:\/\/www.quisted.net\/wp-content\/uploads\/2024\/11\/pathselection-1-1536x903.png 1536w\" sizes=\"auto, (max-width: 1644px) 100vw, 1644px\" \/><\/a><\/h2>\n<ol>\n<li>\n<p><strong>Intra-area (L1) Preference<\/strong>: If a destination is reachable through an L1 route, IS-IS will prioritize this route for intra-area traffic, as L1 routes are designed for communication within the same area. The L1 route is considered more specific because it deals directly with local area routing.<\/p>\n<\/li>\n<li>\n<p><strong>Inter-area (L2) Use<\/strong>: If the destination is not reachable within the local area, IS-IS will look for an L2 route. L2 routes provide connectivity between areas via the L2 backbone. This hierarchical approach ensures scalability and reduces routing complexity within individual areas.<\/p>\n<\/li>\n<li>\n<p><strong>Route Selection Criteria<\/strong>: Within each level, IS-IS selects routes based on metrics. The protocol uses a cost-based metric system, where the path with the lowest accumulated cost is preferred. If multiple routes have the same cost, tie-breaking mechanisms such as equal-cost multipath (ECMP) may be employed.<\/p>\n<\/li>\n<li>\n<p><strong>L1\/L2 Routers<\/strong>: Routers configured as L1\/L2 can advertise default routes between levels, enabling L1 routers to forward inter-area traffic to an L2 router when no L1 path exists.<\/p>\n<\/li>\n<\/ol>\n<p>This selection process allows IS-IS to handle both localized and hierarchical routing efficiently while maintaining clear boundaries between intra-area and inter-area traffic.<\/p>\n\n\n\n<h2><span class=\"ez-toc-section\" id=\"IS-IS_Route_Summarization\"><\/span><span style=\"color: #800080;\">IS-IS Route Summarization<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-size: revert; color: initial;\">Route summarization is crucial for ensuring scalability in IS-IS networks. It addresses two key challenges: <strong>excessively large routing tables<\/strong> and <strong>frequent flooding<\/strong> of link-state updates across the autonomous system (AS). When a route is withdrawn in one area, routers in other areas may need to recalculate shortest paths, increasing processing overhead. To mitigate this and reduce the size of the routing database, summarization can be configured at level boundaries.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"IS-IS_Summarization_locations\"><\/span>IS-IS Summarization locations<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>These are the 3 locations where you can summarize routes within an IS-IS domain.<\/p>\n<h3><a href=\"https:\/\/www.quisted.net\/wp-content\/uploads\/2024\/11\/Summar-text-1.png\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-3028 size-full\" src=\"https:\/\/www.quisted.net\/wp-content\/uploads\/2024\/11\/Summar-text-1.png\" alt=\"\" width=\"1644\" height=\"967\" srcset=\"https:\/\/www.quisted.net\/wp-content\/uploads\/2024\/11\/Summar-text-1.png 1644w, https:\/\/www.quisted.net\/wp-content\/uploads\/2024\/11\/Summar-text-1-300x176.png 300w, https:\/\/www.quisted.net\/wp-content\/uploads\/2024\/11\/Summar-text-1-1024x602.png 1024w, https:\/\/www.quisted.net\/wp-content\/uploads\/2024\/11\/Summar-text-1-768x452.png 768w, https:\/\/www.quisted.net\/wp-content\/uploads\/2024\/11\/Summar-text-1-1536x903.png 1536w\" sizes=\"auto, (max-width: 1644px) 100vw, 1644px\" \/><\/a><\/h3>\n<h4><span class=\"ez-toc-section\" id=\"Option_1_Summarize_Routes_Leaked_from_L1_into_L2\"><\/span><strong>Option 1: Summarize Routes Leaked from L1 into L2<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>In IS-IS, routes learned in Level 1 (intra-area) can be selectively leaked into Level 2 (inter-area) to allow Level 2 routers to access destinations in the Level 1 area. Summarizing these leaked routes reduces the number of individual prefixes advertised into the Level 2 domain. This is particularly useful for minimizing the size of the Level 2 routing table and reducing the scope of link-state updates, ensuring efficient network operation while maintaining connectivity between areas.<\/p>\n<h4><span class=\"ez-toc-section\" id=\"Option_2_Summarize_Routes_Leaked_from_L2_into_L1\"><\/span><strong>Option 2: Summarize Routes Leaked from L2 into L1<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>Routes learned in Level 2 can also be leaked into Level 1 to allow intra-area routers to access inter-area or external destinations. Summarizing these routes ensures that only aggregate prefixes are advertised back into the Level 1 domain. This helps to prevent Level 1 routers from being overwhelmed by unnecessary route details, maintaining simplicity and efficiency within the Level 1 routing tables.<\/p>\n<h4><span class=\"ez-toc-section\" id=\"Option_3_Summarize_Imported_Routes\"><\/span><strong>Option 3: Summarize Imported Routes<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>When routes are imported into the IS-IS domain from external sources, such as other routing protocols, they can be summarized to limit the number of prefixes injected into the IS-IS database. Summarization at this stage helps to contain external routing information, reducing processing and memory requirements for IS-IS routers and preventing external changes from causing excessive link-state protocol flooding within the IS-IS domain.<\/p>\n\n\n\n<h3><span class=\"ez-toc-section\" id=\"IS-IS_Summarization_configuration\"><\/span>IS-IS Summarization configuration<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>In this example I will use option 3 and redistribute the following prefixes from the OSPF router:<\/p>\n<ul>\n<li><span style=\"color: #1ba1e2;\"><strong>100.130.1.0\/24\u00a0 (OSPF)<\/strong><\/span><\/li>\n<li><span style=\"color: #1ba1e2;\"><strong>100.130.2.0\/24\u00a0 (OSPF)<\/strong><\/span><\/li>\n<li><span style=\"color: #1ba1e2;\"><strong>100.130.3.0\/24\u00a0 (OSPF)<\/strong><\/span><\/li>\n<li><span style=\"color: #d80073;\"><strong>100.130.0.0\/16\u00a0 (IS-IS Summary)<\/strong><\/span><\/li>\n<\/ul>\n<p>R6 will then make a <strong>Null0 route\u00a0<\/strong>with the summarized prefix to advertise in the IS-IS domain.<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.75rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;line-height:1rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span role=\"button\" tabindex=\"0\" data-code=\"==== R6\n\nrouter isis 1\n net 49.001.0000.0000.0006.00\n address-family ipv4 unicast\n  metric-style wide\n  summary-prefix 100.130.0.0\/16 level 2    = summarize the route and add in the L2 LSDB\n  redistribute ospf 1 level-2\n !\n\n====== \n\nRP\/0\/0\/CPU0:R6#sh route isis\nThu Nov 28 14:23:31.218 UTC\n\ni L2 1.1.1.1\/32 [115\/20] via 10.5.6.5, 22:34:36, GigabitEthernet0\/0\/0\/2\n                [115\/20] via 10.2.6.2, 22:34:36, GigabitEthernet0\/0\/0\/0\ni L2 2.2.2.2\/32 [115\/20] via 10.2.6.2, 22:34:36, GigabitEthernet0\/0\/0\/0\ni L1 5.5.5.5\/32 [115\/10] via 10.6.10.10, 01:03:09, GigabitEthernet0\/0\/0\/3\n                [115\/10] via 10.5.6.5, 01:03:09, GigabitEthernet0\/0\/0\/2\ni L1 9.9.9.9\/32 [115\/10] via 10.6.10.10, 01:03:09, GigabitEthernet0\/0\/0\/3\ni L2 10.1.2.0\/24 [115\/20] via 10.2.6.2, 22:34:36, GigabitEthernet0\/0\/0\/0\ni L2 10.1.5.0\/24 [115\/20] via 10.5.6.5, 22:40:33, GigabitEthernet0\/0\/0\/2\ni L1 10.5.9.0\/24 [115\/10] via 10.6.10.10, 01:03:09, GigabitEthernet0\/0\/0\/3\ni L1 10.9.10.0\/24 [115\/20] via 10.6.10.10, 23:09:37, GigabitEthernet0\/0\/0\/3\ni L1 10.10.10.10\/32 [115\/20] via 10.6.10.10, 23:09:37, GigabitEthernet0\/0\/0\/3\ni su 100.130.0.0\/16 [115\/0] via 0.0.0.0, 00:03:26, Null0                          = Null0 route\n\n\nsu - IS-IS summary null\" style=\"color:#F8F8F2;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M4.5 12.75l6 6 9-13.5\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M16.5 8.25V6a2.25 2.25 0 00-2.25-2.25H6A2.25 2.25 0 003.75 6v8.25A2.25 2.25 0 006 16.5h2.25m8.25-8.25H18a2.25 2.25 0 012.25 2.25V18A2.25 2.25 0 0118 20.25h-7.5A2.25 2.25 0 018.25 18v-1.5m8.25-8.25h-6a2.25 2.25 0 00-2.25 2.25v6\"><\/path><\/svg><\/span><pre class=\"shiki dracula\" style=\"background-color: #282A36\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #FF79C6\">====<\/span><span style=\"color: #F8F8F2\"> R6<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">router isis <\/span><span style=\"color: #BD93F9\">1<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\"> net <\/span><span style=\"color: #BD93F9\">49.001<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">0000.0000<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">0006.00<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\"> address<\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\">family ipv4 unicast<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">  metric<\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\">style wide<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">  summary<\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\">prefix <\/span><span style=\"color: #BD93F9\">100.130<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">0.0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">16<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #FF79C6\">level<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #BD93F9\">2<\/span><span style=\"color: #F8F8F2\">    <\/span><span style=\"color: #FF79C6\">=<\/span><span style=\"color: #F8F8F2\"> summarize the route <\/span><span style=\"color: #FF79C6\">and<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #FF79C6\">add<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #FF79C6\">in<\/span><span style=\"color: #F8F8F2\"> the L2 LSDB<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">  redistribute ospf <\/span><span style=\"color: #BD93F9\">1<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #FF79C6\">level-<\/span><span style=\"color: #BD93F9\">2<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\"> !<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #FF79C6\">======<\/span><span style=\"color: #F8F8F2\"> <\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">RP<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #F8F8F2\">CPU0:R6#sh route isis<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">Thu Nov <\/span><span style=\"color: #BD93F9\">28<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #BD93F9\">14<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">23<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">31.218<\/span><span style=\"color: #F8F8F2\"> UTC<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">i L2 <\/span><span style=\"color: #BD93F9\">1.1<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">1.1<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">32<\/span><span style=\"color: #F8F8F2\"> [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">20<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.5<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">6.5<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">22<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">34<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">36<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">2<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">                [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">20<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.2<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">6.2<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">22<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">34<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">36<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">i L2 <\/span><span style=\"color: #BD93F9\">2.2<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">2.2<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">32<\/span><span style=\"color: #F8F8F2\"> [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">20<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.2<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">6.2<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">22<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">34<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">36<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">i L1 <\/span><span style=\"color: #BD93F9\">5.5<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">5.5<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">32<\/span><span style=\"color: #F8F8F2\"> [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">10<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.6<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">10.10<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">01<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">03<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">09<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">3<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">                [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">10<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.5<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">6.5<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">01<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">03<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">09<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">2<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">i L1 <\/span><span style=\"color: #BD93F9\">9.9<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">9.9<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">32<\/span><span style=\"color: #F8F8F2\"> [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">10<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.6<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">10.10<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">01<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">03<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">09<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">3<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">i L2 <\/span><span style=\"color: #BD93F9\">10.1<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">2.0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">24<\/span><span style=\"color: #F8F8F2\"> [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">20<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.2<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">6.2<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">22<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">34<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">36<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">i L2 <\/span><span style=\"color: #BD93F9\">10.1<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">5.0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">24<\/span><span style=\"color: #F8F8F2\"> [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">20<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.5<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">6.5<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">22<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">40<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">33<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">2<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">i L1 <\/span><span style=\"color: #BD93F9\">10.5<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">9.0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">24<\/span><span style=\"color: #F8F8F2\"> [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">10<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.6<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">10.10<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">01<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">03<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">09<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">3<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">i L1 <\/span><span style=\"color: #BD93F9\">10.9<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">10.0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">24<\/span><span style=\"color: #F8F8F2\"> [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">20<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.6<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">10.10<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">23<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">09<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">37<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">3<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">i L1 <\/span><span style=\"color: #BD93F9\">10.10<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">10.10<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">32<\/span><span style=\"color: #F8F8F2\"> [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">20<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.6<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">10.10<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">23<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">09<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">37<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">3<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">i su <\/span><span style=\"color: #BD93F9\">100.130<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">0.0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">16<\/span><span style=\"color: #F8F8F2\"> [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">0.0<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">0.0<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">00<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">03<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">26<\/span><span style=\"color: #F8F8F2\">, Null0                          <\/span><span style=\"color: #FF79C6\">=<\/span><span style=\"color: #F8F8F2\"> Null0 route<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">su <\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #FF79C6\">IS-IS<\/span><span style=\"color: #F8F8F2\"> summary <\/span><span style=\"color: #BD93F9\">null<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<h3><span class=\"ez-toc-section\" id=\"IS-IS_Summarization_verification\"><\/span>IS-IS Summarization verification<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><em><strong>L1-2 router R5:<\/strong><\/em><\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.75rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;line-height:1rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span role=\"button\" tabindex=\"0\" data-code=\"==== R5 (L1-2)\n\nRP\/0\/0\/CPU0:R5#sh route isis\nThu Nov 28 14:24:20.564 UTC\n\ni L2 1.1.1.1\/32 [115\/10] via 10.1.5.1, 22:50:09, GigabitEthernet0\/0\/0\/0\ni L2 2.2.2.2\/32 [115\/30] via 10.5.6.6, 22:35:24, GigabitEthernet0\/0\/0\/2\n                [115\/30] via 10.1.5.1, 22:35:24, GigabitEthernet0\/0\/0\/0\ni L1 6.6.6.6\/32 [115\/10] via 10.5.6.6, 23:10:30, GigabitEthernet0\/0\/0\/2\ni L1 9.9.9.9\/32 [115\/20] via 10.5.9.9, 01:03:58, GigabitEthernet0\/0\/0\/3\n                [115\/20] via 10.5.6.6, 01:03:58, GigabitEthernet0\/0\/0\/2\ni L2 10.1.2.0\/24 [115\/20] via 10.1.5.1, 22:50:09, GigabitEthernet0\/0\/0\/0\ni L1 10.2.6.0\/24 [115\/20] via 10.5.9.9, 01:03:58, GigabitEthernet0\/0\/0\/3\n                 [115\/20] via 10.5.6.6, 01:03:58, GigabitEthernet0\/0\/0\/2\ni L1 10.6.10.0\/24 [115\/20] via 10.5.6.6, 23:10:30, GigabitEthernet0\/0\/0\/2\ni L1 10.6.11.0\/24 [115\/20] via 10.5.9.9, 01:03:58, GigabitEthernet0\/0\/0\/3\n                  [115\/20] via 10.5.6.6, 01:03:58, GigabitEthernet0\/0\/0\/2\ni L1 10.9.10.0\/24 [115\/20] via 10.5.9.9, 23:13:28, GigabitEthernet0\/0\/0\/3\ni L1 10.10.10.10\/32 [115\/30] via 10.5.9.9, 23:10:24, GigabitEthernet0\/0\/0\/3\n                    [115\/30] via 10.5.6.6, 23:10:24, GigabitEthernet0\/0\/0\/2\ni L1 10.10.11.0\/24 [115\/20] via 10.5.9.9, 01:03:58, GigabitEthernet0\/0\/0\/3\n                   [115\/20] via 10.5.6.6, 01:03:58, GigabitEthernet0\/0\/0\/2\ni L1 11.11.11.11\/32 [115\/20] via 10.5.9.9, 01:03:58, GigabitEthernet0\/0\/0\/3\n                    [115\/20] via 10.5.6.6, 01:03:58, GigabitEthernet0\/0\/0\/2\n                    \ni L2 100.130.0.0\/16 [115\/10] via 10.5.6.6, 00:04:14, GigabitEthernet0\/0\/0\/2  = Summary Route\n\n\" style=\"color:#F8F8F2;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M4.5 12.75l6 6 9-13.5\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M16.5 8.25V6a2.25 2.25 0 00-2.25-2.25H6A2.25 2.25 0 003.75 6v8.25A2.25 2.25 0 006 16.5h2.25m8.25-8.25H18a2.25 2.25 0 012.25 2.25V18A2.25 2.25 0 0118 20.25h-7.5A2.25 2.25 0 018.25 18v-1.5m8.25-8.25h-6a2.25 2.25 0 00-2.25 2.25v6\"><\/path><\/svg><\/span><pre class=\"shiki dracula\" style=\"background-color: #282A36\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #FF79C6\">====<\/span><span style=\"color: #F8F8F2\"> R5 (L1<\/span><span style=\"color: #FF79C6\">-<\/span><span style=\"color: #BD93F9\">2<\/span><span style=\"color: #F8F8F2\">)<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">RP<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #F8F8F2\">CPU0:R5#sh route isis<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">Thu Nov <\/span><span style=\"color: #BD93F9\">28<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #BD93F9\">14<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">24<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">20.564<\/span><span style=\"color: #F8F8F2\"> UTC<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">i L2 <\/span><span style=\"color: #BD93F9\">1.1<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">1.1<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">32<\/span><span style=\"color: #F8F8F2\"> [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">10<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.1<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">5.1<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">22<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">50<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">09<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">i L2 <\/span><span style=\"color: #BD93F9\">2.2<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">2.2<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">32<\/span><span style=\"color: #F8F8F2\"> [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">30<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.5<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">6.6<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">22<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">35<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">24<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">2<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">                [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">30<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.1<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">5.1<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">22<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">35<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">24<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">i L1 <\/span><span style=\"color: #BD93F9\">6.6<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">6.6<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">32<\/span><span style=\"color: #F8F8F2\"> [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">10<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.5<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">6.6<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">23<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">10<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">30<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">2<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">i L1 <\/span><span style=\"color: #BD93F9\">9.9<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">9.9<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">32<\/span><span style=\"color: #F8F8F2\"> [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">20<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.5<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">9.9<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">01<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">03<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">58<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">3<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">                [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">20<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.5<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">6.6<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">01<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">03<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">58<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">2<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">i L2 <\/span><span style=\"color: #BD93F9\">10.1<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">2.0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">24<\/span><span style=\"color: #F8F8F2\"> [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">20<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.1<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">5.1<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">22<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">50<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">09<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">i L1 <\/span><span style=\"color: #BD93F9\">10.2<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">6.0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">24<\/span><span style=\"color: #F8F8F2\"> [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">20<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.5<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">9.9<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">01<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">03<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">58<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">3<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">                 [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">20<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.5<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">6.6<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">01<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">03<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">58<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">2<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">i L1 <\/span><span style=\"color: #BD93F9\">10.6<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">10.0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">24<\/span><span style=\"color: #F8F8F2\"> [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">20<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.5<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">6.6<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">23<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">10<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">30<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">2<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">i L1 <\/span><span style=\"color: #BD93F9\">10.6<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">11.0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">24<\/span><span style=\"color: #F8F8F2\"> [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">20<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.5<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">9.9<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">01<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">03<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">58<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">3<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">                  [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">20<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.5<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">6.6<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">01<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">03<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">58<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">2<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">i L1 <\/span><span style=\"color: #BD93F9\">10.9<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">10.0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">24<\/span><span style=\"color: #F8F8F2\"> [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">20<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.5<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">9.9<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">23<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">13<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">28<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">3<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">i L1 <\/span><span style=\"color: #BD93F9\">10.10<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">10.10<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">32<\/span><span style=\"color: #F8F8F2\"> [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">30<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.5<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">9.9<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">23<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">10<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">24<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">3<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">                    [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">30<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.5<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">6.6<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">23<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">10<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">24<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">2<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">i L1 <\/span><span style=\"color: #BD93F9\">10.10<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">11.0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">24<\/span><span style=\"color: #F8F8F2\"> [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">20<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.5<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">9.9<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">01<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">03<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">58<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">3<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">                   [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">20<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.5<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">6.6<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">01<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">03<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">58<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">2<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">i L1 <\/span><span style=\"color: #BD93F9\">11.11<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">11.11<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">32<\/span><span style=\"color: #F8F8F2\"> [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">20<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.5<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">9.9<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">01<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">03<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">58<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">3<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">                    [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">20<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.5<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">6.6<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">01<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">03<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">58<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">2<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">                    <\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">i L2 <\/span><span style=\"color: #BD93F9\">100.130<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">0.0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">16<\/span><span style=\"color: #F8F8F2\"> [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">10<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.5<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">6.6<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">00<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">04<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">14<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">2<\/span><span style=\"color: #F8F8F2\">  <\/span><span style=\"color: #FF79C6\">=<\/span><span style=\"color: #F8F8F2\"> Summary Route<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><\/span><\/code><\/pre><\/div>\n\n\n\n<p><em><strong>L2 router R2:<\/strong><\/em><\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.75rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;line-height:1rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span role=\"button\" tabindex=\"0\" data-code=\"==== R2 (L2)\n\nRP\/0\/0\/CPU0:R2#sh route isis\nThu Nov 28 14:25:16.035 UTC\n\ni L2 1.1.1.1\/32 [115\/10] via 10.1.2.1, 22:36:19, GigabitEthernet0\/0\/0\/5\ni L2 5.5.5.5\/32 [115\/20] via 10.1.2.1, 00:05:09, GigabitEthernet0\/0\/0\/5\n                [115\/20] via 10.2.6.6, 00:05:09, GigabitEthernet0\/0\/0\/1\ni L2 6.6.6.6\/32 [115\/10] via 10.2.6.6, 22:36:19, GigabitEthernet0\/0\/0\/1\ni L2 9.9.9.9\/32 [115\/20] via 10.2.6.6, 00:05:09, GigabitEthernet0\/0\/0\/1\ni L2 10.1.5.0\/24 [115\/20] via 10.1.2.1, 22:36:19, GigabitEthernet0\/0\/0\/5\ni L2 10.5.6.0\/24 [115\/20] via 10.2.6.6, 22:36:19, GigabitEthernet0\/0\/0\/1\ni L2 10.5.9.0\/24 [115\/20] via 10.2.6.6, 00:05:09, GigabitEthernet0\/0\/0\/1\ni L2 10.6.10.0\/24 [115\/20] via 10.2.6.6, 22:36:19, GigabitEthernet0\/0\/0\/1\ni L2 10.6.11.0\/24 [115\/10] via 10.2.6.6, 01:05:07, GigabitEthernet0\/0\/0\/1\ni L2 10.9.10.0\/24 [115\/30] via 10.2.6.6, 22:36:19, GigabitEthernet0\/0\/0\/1\ni L2 10.10.10.10\/32 [115\/30] via 10.2.6.6, 22:36:19, GigabitEthernet0\/0\/0\/1\ni L2 10.10.11.0\/24 [115\/10] via 10.2.6.6, 01:08:08, GigabitEthernet0\/0\/0\/1\ni L2 11.11.11.11\/32 [115\/10] via 10.2.6.6, 01:08:08, GigabitEthernet0\/0\/0\/1\n\ni L2 100.130.0.0\/16 [115\/10] via 10.2.6.6, 00:05:09, GigabitEthernet0\/0\/0\/1  = Summary Route\n\" style=\"color:#F8F8F2;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M4.5 12.75l6 6 9-13.5\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M16.5 8.25V6a2.25 2.25 0 00-2.25-2.25H6A2.25 2.25 0 003.75 6v8.25A2.25 2.25 0 006 16.5h2.25m8.25-8.25H18a2.25 2.25 0 012.25 2.25V18A2.25 2.25 0 0118 20.25h-7.5A2.25 2.25 0 018.25 18v-1.5m8.25-8.25h-6a2.25 2.25 0 00-2.25 2.25v6\"><\/path><\/svg><\/span><pre class=\"shiki dracula\" style=\"background-color: #282A36\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #FF79C6\">====<\/span><span style=\"color: #F8F8F2\"> R2 (L2)<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">RP<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #F8F8F2\">CPU0:R2#sh route isis<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">Thu Nov <\/span><span style=\"color: #BD93F9\">28<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #BD93F9\">14<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">25<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">16.035<\/span><span style=\"color: #F8F8F2\"> UTC<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">i L2 <\/span><span style=\"color: #BD93F9\">1.1<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">1.1<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">32<\/span><span style=\"color: #F8F8F2\"> [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">10<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.1<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">2.1<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">22<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">36<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">19<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">5<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">i L2 <\/span><span style=\"color: #BD93F9\">5.5<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">5.5<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">32<\/span><span style=\"color: #F8F8F2\"> [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">20<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.1<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">2.1<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">00<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">05<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">09<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">5<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">                [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">20<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.2<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">6.6<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">00<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">05<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">09<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">1<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">i L2 <\/span><span style=\"color: #BD93F9\">6.6<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">6.6<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">32<\/span><span style=\"color: #F8F8F2\"> [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">10<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.2<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">6.6<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">22<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">36<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">19<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">1<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">i L2 <\/span><span style=\"color: #BD93F9\">9.9<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">9.9<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">32<\/span><span style=\"color: #F8F8F2\"> [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">20<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.2<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">6.6<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">00<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">05<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">09<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">1<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">i L2 <\/span><span style=\"color: #BD93F9\">10.1<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">5.0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">24<\/span><span style=\"color: #F8F8F2\"> [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">20<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.1<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">2.1<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">22<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">36<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">19<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">5<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">i L2 <\/span><span style=\"color: #BD93F9\">10.5<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">6.0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">24<\/span><span style=\"color: #F8F8F2\"> [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">20<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.2<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">6.6<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">22<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">36<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">19<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">1<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">i L2 <\/span><span style=\"color: #BD93F9\">10.5<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">9.0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">24<\/span><span style=\"color: #F8F8F2\"> [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">20<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.2<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">6.6<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">00<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">05<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">09<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">1<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">i L2 <\/span><span style=\"color: #BD93F9\">10.6<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">10.0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">24<\/span><span style=\"color: #F8F8F2\"> [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">20<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.2<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">6.6<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">22<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">36<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">19<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">1<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">i L2 <\/span><span style=\"color: #BD93F9\">10.6<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">11.0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">24<\/span><span style=\"color: #F8F8F2\"> [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">10<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.2<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">6.6<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">01<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">05<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">07<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">1<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">i L2 <\/span><span style=\"color: #BD93F9\">10.9<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">10.0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">24<\/span><span style=\"color: #F8F8F2\"> [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">30<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.2<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">6.6<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">22<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">36<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">19<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">1<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">i L2 <\/span><span style=\"color: #BD93F9\">10.10<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">10.10<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">32<\/span><span style=\"color: #F8F8F2\"> [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">30<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.2<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">6.6<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">22<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">36<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">19<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">1<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">i L2 <\/span><span style=\"color: #BD93F9\">10.10<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">11.0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">24<\/span><span style=\"color: #F8F8F2\"> [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">10<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.2<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">6.6<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">01<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">08<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">08<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">1<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">i L2 <\/span><span style=\"color: #BD93F9\">11.11<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">11.11<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">32<\/span><span style=\"color: #F8F8F2\"> [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">10<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.2<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">6.6<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">01<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">08<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">08<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">1<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">i L2 <\/span><span style=\"color: #BD93F9\">100.130<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">0.0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">16<\/span><span style=\"color: #F8F8F2\"> [<\/span><span style=\"color: #BD93F9\">115<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">10<\/span><span style=\"color: #F8F8F2\">] via <\/span><span style=\"color: #BD93F9\">10.2<\/span><span style=\"color: #F8F8F2\">.<\/span><span style=\"color: #BD93F9\">6.6<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #BD93F9\">00<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">05<\/span><span style=\"color: #F8F8F2\">:<\/span><span style=\"color: #BD93F9\">09<\/span><span style=\"color: #F8F8F2\">, GigabitEthernet0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">0<\/span><span style=\"color: #FF79C6\">\/<\/span><span style=\"color: #BD93F9\">1<\/span><span style=\"color: #F8F8F2\">  <\/span><span style=\"color: #FF79C6\">=<\/span><span style=\"color: #F8F8F2\"> Summary Route<\/span><\/span>\n<span class=\"line\"><\/span><\/code><\/pre><\/div>\n\n\n","protected":false},"excerpt":{"rendered":"<p>&nbsp; Intermediate System to Intermediate System (IS-IS) Intermediate System to Intermediate System (IS-IS) is a dynamic link-state routing protocol widely used in large-scale networks, especially in service provider environments. In this post I will look at the following IS-IS configurations; Redistribution of\u00a0OSPF into IS-IS, and the differences between L1 and L2. IS-IS Path selection when [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":2875,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"ngg_post_thumbnail":0,"footnotes":""},"categories":[160,127],"tags":[54,73,159,157,158],"class_list":["post-2874","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-is-is","category-sp","tag-is-is","tag-ospf","tag-pathselection","tag-redistribution","tag-summarization"],"_links":{"self":[{"href":"https:\/\/www.quisted.net\/index.php\/wp-json\/wp\/v2\/posts\/2874","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.quisted.net\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.quisted.net\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.quisted.net\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.quisted.net\/index.php\/wp-json\/wp\/v2\/comments?post=2874"}],"version-history":[{"count":124,"href":"https:\/\/www.quisted.net\/index.php\/wp-json\/wp\/v2\/posts\/2874\/revisions"}],"predecessor-version":[{"id":3231,"href":"https:\/\/www.quisted.net\/index.php\/wp-json\/wp\/v2\/posts\/2874\/revisions\/3231"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.quisted.net\/index.php\/wp-json\/wp\/v2\/media\/2875"}],"wp:attachment":[{"href":"https:\/\/www.quisted.net\/index.php\/wp-json\/wp\/v2\/media?parent=2874"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.quisted.net\/index.php\/wp-json\/wp\/v2\/categories?post=2874"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.quisted.net\/index.php\/wp-json\/wp\/v2\/tags?post=2874"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}