{"id":9199,"date":"2008-01-28T23:10:00","date_gmt":"2008-01-29T04:10:00","guid":{"rendered":"https:\/\/nuxx.net\/blog\/2008\/01\/28\/address-cache-timeout\/"},"modified":"2026-07-01T11:36:28","modified_gmt":"2026-07-01T15:36:28","slug":"address-cache-timeout","status":"publish","type":"post","link":"https:\/\/nuxx.net\/blog\/2008\/01\/28\/address-cache-timeout\/","title":{"rendered":"Address Cache Timeout"},"content":{"rendered":"<p>Do any of you know what is a typical timeout for the address cache on a switch? After some initial problems with the default 240 second address timeout, I&#8217;ve found that dropping the timeout back to 5 seconds clears up the problems I was having with moving machines to other ports.<\/p>\n<p>That said, 5 seconds seems a bit low to me, as every time a machine starts to talk after that there will be a brief broadcast to all interfaces. So, I&#8217;m thinking 30 seconds, but I&#8217;m not sure&#8230;<\/p>\n<p>Any idea what the default is on commercial network gear? I&#8217;m thinking that Cisco stuff is five minutes, but that seems a little low to me&#8230;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Do any of you know what is a typical timeout for the address cache on a switch? After some initial problems with the default 240 second address timeout, I&#8217;ve found that dropping the timeout back to 5 seconds clears up the problems I was having with moving machines to other ports. That said, 5 seconds\u2026<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[13,34],"tags":[],"class_list":["post-9199","post","type-post","status-publish","format-standard","hentry","category-computers","category-moved-from-livejournal"],"_links":{"self":[{"href":"https:\/\/nuxx.net\/blog\/wp-json\/wp\/v2\/posts\/9199","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/nuxx.net\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/nuxx.net\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/nuxx.net\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/nuxx.net\/blog\/wp-json\/wp\/v2\/comments?post=9199"}],"version-history":[{"count":3,"href":"https:\/\/nuxx.net\/blog\/wp-json\/wp\/v2\/posts\/9199\/revisions"}],"predecessor-version":[{"id":12430,"href":"https:\/\/nuxx.net\/blog\/wp-json\/wp\/v2\/posts\/9199\/revisions\/12430"}],"wp:attachment":[{"href":"https:\/\/nuxx.net\/blog\/wp-json\/wp\/v2\/media?parent=9199"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nuxx.net\/blog\/wp-json\/wp\/v2\/categories?post=9199"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nuxx.net\/blog\/wp-json\/wp\/v2\/tags?post=9199"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}