[c-nsp] 6500 netflow export and the switch cpu

[Asad]

You can enable sampling if it is not enabled. It should help some.

Asad
Sent from my Verizon Wireless BlackBerry

-----Original Message-----
From: Jon Lewis <jlewis at lewis.org>

Date: Thu, 11 Sep 2008 11:50:44 
To: <cisco-nsp at puck.nether.net>
Subject: [c-nsp] 6500 netflow export and the switch cpu


I've got a 6509 with sup720-3bxl running 12.2(18)SXD7b.  It's forwarding 
several hundred mbit/s across a number of gig ports on WS-X6416-GBIC 
cards.

I've noticed it's gotten very slow at certain things (like write mem), and 
when looking at the switch (remote command switch show proc cpu), I was 
kind of shocked to see 85% CPU utilization or higher across all time avgs. 
The biggest CPU eating process seems to be netflow export

  223  2563111984 126342970      20287 38.27% 42.39% 42.03%   0 NDE - IPV4

Other than disabling export or moving traffic off this device, are there 
things I can do to tone this down?  The couple hundred mbit/s this switch 
is forwarding is supposed to be no big deal for this platform.

----------------------------------------------------------------------
  Jon Lewis                   |  I route
  Senior Network Engineer     |  therefore you are
  Atlantic Net                |
_________ http://www.lewis.org/~jlewis/pgp for PGP public key_________
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