{"id":389,"date":"2010-03-11T17:25:06","date_gmt":"2010-03-11T17:25:06","guid":{"rendered":"http:\/\/mccltd.net\/blog\/?p=389"},"modified":"2010-06-09T09:51:39","modified_gmt":"2010-06-09T08:51:39","slug":"ip-route-cache-fast-switching","status":"publish","type":"post","link":"http:\/\/darenmatthews.com\/blog\/?p=389","title":{"rendered":"ip route-cache \/ fast switching"},"content":{"rendered":"<p>&#8220;ip route-cache&#8221; controls the use of switching methods for forwarding IP packets:<\/p>\n<p>ip route-cache [same-interface | flow | distributed | cef | policy]<br \/>\n<!--more--><\/p>\n<ul>\n<li><strong>same-interface<\/strong> &#8211; Enables fast-switching packets to forward IP packets back out through the interface on which they arrived.<\/li>\n<\/ul>\n<ul>\n<li><strong>flow<\/strong> &#8211; Enables NetFlow accounting for packets that are received by the interface.<\/li>\n<li><strong>distributed<\/strong> &#8211; Enables distributed switching on the interface.<\/li>\n<li><strong>cef<\/strong> &#8211; Enables Cisco Express Forwarding (CEF) operation on an interface.<\/li>\n<li><strong>policy<\/strong> &#8211; Enables fast-switching for packets that are forwarded using Policy Based Routing (PBR).<\/li>\n<\/ul>\n<p>Do you have &#8220;no ip route-cache&#8221; configured but are still apparently fast switching?\u00a0 Possibly because the &#8220;show int switching&#8221; command does not at the time of writing distinguish between fast-switched and CEF-switched packets, so CEF-switched packets are recorded as being fast-switched.<\/p>\n<p>&#8220;show adj detail&#8221; Will show how many packets\/bytes are CEF switched out of each next-hop\/adjacency.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>&#8220;ip route-cache&#8221; controls the use of switching methods for forwarding IP packets: ip route-cache [same-interface | flow | distributed | cef | policy]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[83],"tags":[45],"_links":{"self":[{"href":"http:\/\/darenmatthews.com\/blog\/index.php?rest_route=\/wp\/v2\/posts\/389"}],"collection":[{"href":"http:\/\/darenmatthews.com\/blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/darenmatthews.com\/blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/darenmatthews.com\/blog\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/darenmatthews.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=389"}],"version-history":[{"count":2,"href":"http:\/\/darenmatthews.com\/blog\/index.php?rest_route=\/wp\/v2\/posts\/389\/revisions"}],"predecessor-version":[{"id":947,"href":"http:\/\/darenmatthews.com\/blog\/index.php?rest_route=\/wp\/v2\/posts\/389\/revisions\/947"}],"wp:attachment":[{"href":"http:\/\/darenmatthews.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=389"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/darenmatthews.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=389"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/darenmatthews.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=389"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}