Switching

londint · ‎12-27-2002

I recently did a show interface stat and obtained the following. From what I can see it seems as if we have more of our packets being processes switched rather than fast switched. I know this should no be the case as we are using MSFC in Cisco6509 Switch which has mls enabled by default. Is there something I am missing and if there is please what is it.?

Thanks

Vlan11

Switching path Pkts In Chars In Pkts Out Chars Out

Processor 5902314 488671809 833430 54571171

Route cache 14083 1476835 102866 14787150

Distributed cache 0 0 0 0

Total 5916397 490148644 936296 69358321

Vlan12

Switching path Pkts In Chars In Pkts Out Chars Out

Processor 7889912 578538540 1680692 110695675

Route cache 2271779 276149174 204653 33448467

Distributed cache 0 0 0 0

Total 10161692 854687778 1885345 144144142

Vlan13

Switching path Pkts In Chars In Pkts Out Chars Out

Processor 4914071 370822993 2293187 150357257

Route cache 550640 56929422 130420 25304450

s-doyle · ‎01-03-2003

To verify whether CEF is working, go through the following steps.

Enable CEF with the ip cef command.

Execute the clear ip cache command. This command clears the fast-switched cache entries.

Start your traffic stream.

Execute the show ip cache command. Confirm that no entries are displayed in the fast-switched cache since the packets are CEF-switched.

Execute the show interface stats command and confirm incrementing hits for route cache inbound. Note: The route cache counter includes both fast-switched and CEF-switched packets.

Disable CEF with the no ip route-cache cef command on the inbound interface.

Execute the show interface stats command and confirm incrementing hits for route cache.

Execute the show ip cache command and confirm that you see entries since Cisco IOS has fallen back to fast switching.

Execute the no ip route-cache command on the outbound interface to disable fast switching. Packets on the matching inbound interface will be process switched. Note: It is not recommended to configure process switching in a heavy traffic network.