nanog mailing list archives
Re: Netflow on SUP720-3BXL
From: Jon Lewis <jlewis () lewis org>
Date: Sun, 15 Mar 2009 10:00:43 -0400 (EDT)
On Sun, 15 Mar 2009, Andy Bierlair wrote:
Im trying to run netflow on one of our Cisco core routers (SUP720-3BXL), but I think I am hitting some limitations because of this: %EARL_NETFLOW-SP-4-TCAM_THRLD: Netflow TCAM threshold exceeded, TCAM Utilization [99%] TCAM Utilization : 100% Aggregated traffic: 7-8 GBIT/s Packets per Second: 1.0 - 1.2 Million
AFAIK, at that traffic level, you will have to do sampled netflow. Try mls sampling time-based 64 [in global] mls netflow sampling [in interface]and see if that stops your TCAM utilization issues. You may have to sample even less flow data.
---------------------------------------------------------------------- Jon Lewis | I route Senior Network Engineer | therefore you are Atlantic Net | _________ http://www.lewis.org/~jlewis/pgp for PGP public key_________
Current thread:
- Netflow on SUP720-3BXL Andy Bierlair (Mar 14)
- Message not available
- Re: Netflow on SUP720-3BXL Andy Bierlair (Mar 14)
- Re: Netflow on SUP720-3BXL Olof Kasselstrand (Mar 15)
- Re: Netflow on SUP720-3BXL Andy Bierlair (Mar 14)
- Message not available
- Re: Netflow on SUP720-3BXL Nick Hilliard (Mar 15)
- Re: Netflow on SUP720-3BXL Jon Lewis (Mar 15)
- Re: Netflow on SUP720-3BXL Neil J. McRae (Mar 16)