NETFLOW ON CISCO 2960C SWITCHES

Question

Hi

I'm trying to configure NTA on Cisco 2960C with no luck.

Is there any specific configuration needed for this model ? It seems to support Netflow as I'm able to run all commands with no issue provided here as a sample, But for some reasons it's not showing up in NTA interfaces.

Cisco 2900 series routers sample configuration for NTA - SolarWinds Worldwide, LLC. Help and Support

show ip flow export shows 0 flows exported in 0 udp datagrams

If it doesn't support Netflow, How it can be monitored using NTA?

Thanks

mesverrum · Answer

netflow is from it's core a layer 3 protocol, only a few Cisco devices are able to package up l2 packet info into a flow, specifically I can remember setting up for a 6509 chassis but I don't believe there is any equivalent capability on anything smaller than that.

jasonsk · Answer

Hi,

That's for Layer3 stuff, however I'm looking for a way to monitor traffic using NTA even if I use 2960c for Layer2 purpose as well. How we can monitor Layer2 devices in NTA?

Would you happen to know if there is anything I can try to make it working? Already read multiple articles but couldn't find something so far

mesverrum · Answer

Are you using the 2960c for layer 3 stuff or just layer 2?  netflow is (usually) a layer 3 protocol so I could see that as a potential hiccup.