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_________