{"id":770,"date":"2018-02-14T09:44:03","date_gmt":"2018-02-14T08:44:03","guid":{"rendered":"http:\/\/www.quisted.net\/?p=770"},"modified":"2018-02-14T09:44:03","modified_gmt":"2018-02-14T08:44:03","slug":"datacenter-design-vpc-mec-fabric-extenders","status":"publish","type":"post","link":"https:\/\/www.quisted.net\/index.php\/2018\/02\/14\/datacenter-design-vpc-mec-fabric-extenders\/","title":{"rendered":"Datacenter Design IV ( VPC , MEC, Fabric Extenders )"},"content":{"rendered":"<p><span style=\"color: #3366ff;\"><strong>What is a vPC <em>(virtual Port Channel)<\/em><\/strong><br \/>\n<\/span><\/p>\n<p><a href=\"http:\/\/vps.quisted.net\/wp-content\/uploads\/2018\/02\/vpc.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-771\" src=\"http:\/\/vps.quisted.net\/wp-content\/uploads\/2018\/02\/vpc.png\" alt=\"\" width=\"496\" height=\"212\" srcset=\"https:\/\/www.quisted.net\/wp-content\/uploads\/2018\/02\/vpc.png 496w, https:\/\/www.quisted.net\/wp-content\/uploads\/2018\/02\/vpc-300x128.png 300w\" sizes=\"auto, (max-width: 496px) 100vw, 496px\" \/><\/a><\/p>\n<ul>\n<li>Nexus series Network Virtualisation Technology.<\/li>\n<li>&#8220;Lightweight&#8221; VSS &#8211; Combine ports, not switches.<\/li>\n<li>Links on different switches to appear as the same device.<\/li>\n<li>Downstream device can be anything supoprting<strong> 802.3ad (LACP).<\/strong><\/li>\n<li>Commonly called <span style=\"color: #993366;\"><strong>Multi Chassis Etherchannel<\/strong><\/span> ( <em>MEC<\/em> ).<\/li>\n<\/ul>\n<h3><!--more--><\/h3>\n<p><strong><span style=\"color: #3366ff;\">Multi Chassis Etherchannel <\/span><\/strong><\/p>\n<ul>\n<li><a href=\"https:\/\/en.wikipedia.org\/wiki\/MC-LAG\" target=\"_blank\" rel=\"noopener\">https:\/\/en.wikipedia.org\/wiki\/MC-LAG<\/a><\/li>\n<li>Multi chassis etherchannel ( <strong>MEC \/ MC-LAG<\/strong> ) allows two switches to appear as a single switch.<\/li>\n<li>Technology used to form a virtual switch ( <strong>VSS \/ vPC<\/strong> ) are not standard.<\/li>\n<li>MEC Provides load balancing and High Availability ( <strong>HA<\/strong> ).<\/li>\n<li>16-port Etherchannel possibilities.<\/li>\n<\/ul>\n<p><strong><span style=\"color: #3366ff;\">Fabric Extenders<\/span><br \/>\n<\/strong><\/p>\n<ul>\n<li><strong>FEX:<\/strong> Top of Rack ( <strong>TOR<\/strong> ) concept with end of rack ( <strong>EOR<\/strong> ) benefits.<\/li>\n<li>Nexus 2000 series , seperate yet controlled from the parent switch.<\/li>\n<li>vPC on EOR switches feeds redundant FEXS for MEC capabilities.<\/li>\n<li>no STP, no L3 convergence &#8211; HA Ability of MEC.<\/li>\n<li>Aggregation switch is the brain, no local switching.<\/li>\n<\/ul>\n<p><a href=\"http:\/\/vps.quisted.net\/wp-content\/uploads\/2018\/02\/fex.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-777\" src=\"http:\/\/vps.quisted.net\/wp-content\/uploads\/2018\/02\/fex.png\" alt=\"\" width=\"523\" height=\"342\" srcset=\"https:\/\/www.quisted.net\/wp-content\/uploads\/2018\/02\/fex.png 523w, https:\/\/www.quisted.net\/wp-content\/uploads\/2018\/02\/fex-300x196.png 300w\" sizes=\"auto, (max-width: 523px) 100vw, 523px\" \/><\/a><\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>What is a vPC (virtual Port Channel) Nexus series Network Virtualisation Technology. &#8220;Lightweight&#8221; VSS &#8211; Combine ports, not switches. Links on different switches to appear as the same device. Downstream device can be anything supoprting 802.3ad (LACP). Commonly called Multi Chassis Etherchannel ( MEC ).<\/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":[2,4],"tags":[61,62,97,102],"class_list":["post-770","post","type-post","status-publish","format-standard","hentry","category-arc","category-datacenterdesign","tag-mc-lag","tag-mec","tag-vpc","tag-vss"],"_links":{"self":[{"href":"https:\/\/www.quisted.net\/index.php\/wp-json\/wp\/v2\/posts\/770","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=770"}],"version-history":[{"count":0,"href":"https:\/\/www.quisted.net\/index.php\/wp-json\/wp\/v2\/posts\/770\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.quisted.net\/index.php\/wp-json\/wp\/v2\/media?parent=770"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.quisted.net\/index.php\/wp-json\/wp\/v2\/categories?post=770"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.quisted.net\/index.php\/wp-json\/wp\/v2\/tags?post=770"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}