08-21-2007 04:09 PM
Hello, Anyone has any idea on how to limit the traffic generated by 7206 (IOS 12.3(21)) netflow export ? By the way netflow is working for me, I am only trying to limit its traffic.
I tried to use policy-map policing but I could not pick up the netflow traffic no matter what I do, the ACL counter and the "sh policy map" does not show any matched traffic. I have even tried moving the neflow export source from loopback to an GigaEthernet interface but did not help.
Thanks.
08-22-2007 04:07 PM
Please read over this link which details how to setup Netflow sampling. A couple of caveats I noticed: (1) Your code and feature set may have to change and (2) you have to be collecting/exporting netflow V5 or V9 data.
HTH
Steve
08-24-2007 08:55 AM
Thanks very much ! sampling for every x number of lines is a form of rate limit. I will take a closer look at IOS support. I am using V5 so that should help.
08-23-2007 02:37 AM
Hello,
why do you want rate-limit netflow exports? Due to slow collector or do you have problem with line bottleneck? If you have a overloaded line I recommend connect collector directly on one interface. If you have a slow collector how many flows do you export to the collector [show ip flow-export]?
Jan
08-24-2007 09:00 AM
rate limit of netflow is required under adverse network condition, where netflow accounts for a sizable % of total traffic.
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