RE: CEF debugging question

From: Darrin Machay <darrin.machay_at_yjtsolutions.com>
Date: Tue, 12 Jan 2010 15:39:49 -0600

The easiest way to see what's going on is to span RP-inband and use a sniffer like WireShark to take a look at the punted packets.

See the section "SPAN RP-Inband and SP-Inband": http://www.cisco.com/en/US/products/hw/switches/ps708/products_tech_note09186a00804916e0.shtml

Assuming you want to use span session 1:
rtr# remote login switch
rtr-sp# test monitor add 1 rp-inband [rx | tx | both]

Darrin Machay

YJT Solutions
440 South LaSalle St, Suite 3990
Chicago, IL 60605
www.YJTSolutions.com

-----Original Message-----
From: nobody_at_groupstudy.com [mailto:nobody_at_groupstudy.com] On Behalf Of Usama Pervaiz
Sent: Tuesday, January 12, 2010 2:24 PM
To: ccielab_at_groupstudy.com
Subject: OT: CEF debugging question

Hello all,

I am trying to debug CEF on a 6509. I want to know what traffic is
being punted to processed switched. Is there an easy show command that
i can use. I have tried:

sh ip cef switching statistics feature
sh cef not-cef-switched

but they only give me stats not what I am looking for.

I am doing this becuase my CPU is taking a beating and I think it is
because CEF is punting these packets down and hence killing my router.

Any and all help would be appreciated.

Thanks!
Usama

Blogs and organic groups at http://www.ccie.net
Received on Tue Jan 12 2010 - 15:39:49 ART

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