{"id":547,"date":"2018-01-29T12:04:00","date_gmt":"2018-01-29T11:04:00","guid":{"rendered":"http:\/\/www.quisted.net\/?p=547"},"modified":"2018-01-29T12:04:00","modified_gmt":"2018-01-29T11:04:00","slug":"wan-services","status":"publish","type":"post","link":"https:\/\/www.quisted.net\/index.php\/2018\/01\/29\/wan-services\/","title":{"rendered":"Wan Services (Sonet, Metro, VPLS, MPLS)"},"content":{"rendered":"<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-3'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.quisted.net\/index.php\/2018\/01\/29\/wan-services\/#SONET_SDH\" >SONET \/ SDH<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.quisted.net\/index.php\/2018\/01\/29\/wan-services\/#Metro_Ethernet\" >Metro Ethernet<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.quisted.net\/index.php\/2018\/01\/29\/wan-services\/#VPLS_Vlan_private_lan_service\" >VPLS ( Vlan private lan service )<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.quisted.net\/index.php\/2018\/01\/29\/wan-services\/#MPLS_Multprotocol_label_switching\" >MPLS (Multprotocol label switching)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.quisted.net\/index.php\/2018\/01\/29\/wan-services\/#Choosing_and_Monitoring_the_Service_Provider\" >Choosing and Monitoring the Service Provider<\/a><\/li><\/ul><\/nav><\/div>\n<h3><span class=\"ez-toc-section\" id=\"SONET_SDH\"><\/span><span style=\"color: #3366ff;\">SONET \/ SDH<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><strong>Sonet ( Synchronous Optical Networking)<\/strong><\/p>\n<ul>\n<li>American National Standards Institute (ANSI)<\/li>\n<li>Used in US \/ Canada<\/li>\n<li>Synchronous transport signals (STS) used for speed<\/li>\n<\/ul>\n<p><strong>Synchronous Digital Hierarchy<\/strong><\/p>\n<ul>\n<li>International Telecommunications union (ITU)<\/li>\n<li>Used everywhere expect US \/ Canada<\/li>\n<li>Synchronoous transport Modules (STM) used for speed)<\/li>\n<\/ul>\n<p><!--more--><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Metro_Ethernet\"><\/span><span style=\"color: #3366ff;\">Metro Ethernet<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Ethernet Multipoint Services ( EMS )<\/p>\n<ul>\n<li>Same as EWS, Full mesh<\/li>\n<li>Traffic QinQ<\/li>\n<\/ul>\n<p>Ethernet Relay Multipoint Services (ERMS)<\/p>\n<ul>\n<li>\u00a0Hybrid of EMS \/ ERS<\/li>\n<li>Allows a mesh of EMS Sites with specific VLAN ers Destination<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"VPLS_Vlan_private_lan_service\"><\/span><span style=\"color: #3366ff;\">VPLS ( Vlan private lan service )<br \/>\n<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li>EMS Enviroment where customer connections emulate an ethernet switch<\/li>\n<li>Each EMS enviroment is seen as a VLAN from the SP perspective<\/li>\n<li><span style=\"color: #ff0000;\"><strong>DISADVANTAGES:<\/strong><\/span>\n<ul>\n<li>Layer 2 STP based troubles<\/li>\n<li>Entire enviornment subsceptable to outages<\/li>\n<li>Multicast\/broadcast to all sites<\/li>\n<li>Routers peer in full mesh (scaling \/ peformance \/ flaps )<\/li>\n<li>All customers could be impacted by a layer 2 loop<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"MPLS_Multprotocol_label_switching\"><\/span><span style=\"color: #3366ff;\">MPLS (Multprotocol label switching)<br \/>\n<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li>Layer 3:\n<ul>\n<li>IP only<\/li>\n<li>Service provider works with customer router<\/li>\n<li>simpler QoS design<\/li>\n<\/ul>\n<\/li>\n<li>Layer 2:\n<ul>\n<li>Support for any protocol<\/li>\n<li>Blends multiple l2 addressing mathods (dlc, mac, vpi\/vci)<\/li>\n<li>Customer controler all Layer3<\/li>\n<\/ul>\n<\/li>\n<li>Redistribution of BGP into IGP may skew Administrative Distance (backdoor routes)<\/li>\n<li>Carrier managed routers cause pain:\n<ul>\n<li>Solve by adding a second router behind the carrier router<\/li>\n<li>GRE tunneling networks through<\/li>\n<li>Handling FHRP redundancy (with multiple connections)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"Choosing_and_Monitoring_the_Service_Provider\"><\/span><span style=\"color: #3366ff;\">Choosing and Monitoring the Service Provider<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li>Research the underlying technology<\/li>\n<li>If budget allows, roll out two service providers to test<\/li>\n<li>See the service provicer as a valued partner relationship<\/li>\n<li>Ask out of the box questions\n<ul>\n<li>How skilled are your techs<\/li>\n<li>How neat is your install<\/li>\n<li>Do you label your devices and ports<\/li>\n<li>How old is your equipment?<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>SONET \/ SDH Sonet ( Synchronous Optical Networking) American National Standards Institute (ANSI) Used in US \/ Canada Synchronous transport signals (STS) used for speed Synchronous Digital Hierarchy International Telecommunications union (ITU) Used everywhere expect US \/ Canada Synchronoous transport Modules (STM) used for speed)<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"ngg_post_thumbnail":0,"footnotes":""},"categories":[2,5],"tags":[63,65,90,98],"class_list":["post-547","post","type-post","status-publish","format-standard","hentry","category-arc","category-designprinciples","tag-metro","tag-mpls","tag-sonet","tag-vpls"],"_links":{"self":[{"href":"https:\/\/www.quisted.net\/index.php\/wp-json\/wp\/v2\/posts\/547","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=547"}],"version-history":[{"count":0,"href":"https:\/\/www.quisted.net\/index.php\/wp-json\/wp\/v2\/posts\/547\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.quisted.net\/index.php\/wp-json\/wp\/v2\/media?parent=547"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.quisted.net\/index.php\/wp-json\/wp\/v2\/categories?post=547"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.quisted.net\/index.php\/wp-json\/wp\/v2\/tags?post=547"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}