{"id":1429,"date":"2012-06-10T19:53:37","date_gmt":"2012-06-10T18:53:37","guid":{"rendered":"https:\/\/userblogs.fu-berlin.de\/afibinirland2012\/?p=1429"},"modified":"2012-06-10T19:53:37","modified_gmt":"2012-06-10T18:53:37","slug":"enhancing-network-performance-again","status":"publish","type":"post","link":"https:\/\/userblogs.fu-berlin.de\/afibinirland2012\/2012\/06\/10\/enhancing-network-performance-again\/","title":{"rendered":"Enhancing Network Performance &#8230; Again"},"content":{"rendered":"<p>Last week I boosted network performance at <a href=\"https:\/\/www.translink.co.uk\/\" target=\"_blank\">Translink<\/a> again.<\/p>\n<p>The <a href=\"https:\/\/www.cisco.com\/en\/US\/docs\/solutions\/Enterprise\/Campus\/HA_campus_DG\/hacampusdg.html#wp1107724\" target=\"_blank\">core<\/a> switches used to be connected via single 1Gbit\/s links, whereas all other ports are also 1Gbit\/s. Unsurprisingly they had problems with several connections traversing the core. So I decided to increase the bandwidth (and by the way improve redundancy) by configuring an 8-port <a href=\"https:\/\/www.cisco.com\/en\/US\/tech\/tk389\/tk213\/tsd_technology_support_protocol_home.html\" target=\"_blank\">EtherChannel<\/a> between each two core switches.<\/p>\n<p><a href=\"https:\/\/userblogs.fu-berlin.de\/afibinirland2012\/files\/2012\/06\/EtherChannel.png\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/userblogs.fu-berlin.de\/afibinirland2012\/files\/2012\/06\/EtherChannel.png\" alt=\"\" width=\"436\" height=\"225\" class=\"alignnone size-full wp-image-1488\" srcset=\"https:\/\/userblogs.fu-berlin.de\/afibinirland2012\/files\/2012\/06\/EtherChannel.png 436w, https:\/\/userblogs.fu-berlin.de\/afibinirland2012\/files\/2012\/06\/EtherChannel-300x154.png 300w\" sizes=\"auto, (max-width: 436px) 85vw, 436px\" \/><\/a><\/p>\n<p>Of course the redundancy could also be improved by just patching more links between the switches, but in this case there would only be one usable link at a time, because the <a href=\"https:\/\/en.wikipedia.org\/wiki\/Spanning_Tree_Protocol\" target=\"_blank\">Spanning Tree Protocol (STP)<\/a> would block the remaining links to prevent a loop in the network. By configuring the EtherChannel the switches consider the eight ports of the EtherChannel as one logical port and load-balance the traffic over all links.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Last week I boosted network performance at Translink again. The core switches used to be connected via single 1Gbit\/s links, whereas all other ports are also 1Gbit\/s. Unsurprisingly they had problems with several connections traversing the core. So I decided to increase the bandwidth (and by the way improve redundancy) by configuring an 8-port EtherChannel &hellip; <a href=\"https:\/\/userblogs.fu-berlin.de\/afibinirland2012\/2012\/06\/10\/enhancing-network-performance-again\/\" class=\"more-link\"><span class=\"screen-reader-text\">\u201eEnhancing Network Performance &#8230; Again\u201c<\/span> weiterlesen<\/a><\/p>\n","protected":false},"author":1063,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[5249,166,1207,5247,5246,1208,5248,561,338],"class_list":["post-1429","post","type-post","status-publish","format-standard","hentry","category-allgemein","tag-bandwidth","tag-belfast","tag-cisco","tag-core","tag-etherchannel","tag-network","tag-redundancy","tag-translink","tag-work"],"_links":{"self":[{"href":"https:\/\/userblogs.fu-berlin.de\/afibinirland2012\/wp-json\/wp\/v2\/posts\/1429","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/userblogs.fu-berlin.de\/afibinirland2012\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/userblogs.fu-berlin.de\/afibinirland2012\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/userblogs.fu-berlin.de\/afibinirland2012\/wp-json\/wp\/v2\/users\/1063"}],"replies":[{"embeddable":true,"href":"https:\/\/userblogs.fu-berlin.de\/afibinirland2012\/wp-json\/wp\/v2\/comments?post=1429"}],"version-history":[{"count":6,"href":"https:\/\/userblogs.fu-berlin.de\/afibinirland2012\/wp-json\/wp\/v2\/posts\/1429\/revisions"}],"predecessor-version":[{"id":1493,"href":"https:\/\/userblogs.fu-berlin.de\/afibinirland2012\/wp-json\/wp\/v2\/posts\/1429\/revisions\/1493"}],"wp:attachment":[{"href":"https:\/\/userblogs.fu-berlin.de\/afibinirland2012\/wp-json\/wp\/v2\/media?parent=1429"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/userblogs.fu-berlin.de\/afibinirland2012\/wp-json\/wp\/v2\/categories?post=1429"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/userblogs.fu-berlin.de\/afibinirland2012\/wp-json\/wp\/v2\/tags?post=1429"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}