Netflow stats on 6509 hybrid Layer 2 vlan only

Answered Question
Apr 11th, 2008

I have a L2 vlan only. I don't see in the various netflow docs how I can setup netflow to pull info from that L2 vlan. Lots of info about how to setup netflow with a L3 Vlan and interfaces and how to do it with the native mode IOS. That doesn't help me here running Native CatOS.

Running 8.3(2) CatOS and 12.2(14)ZA7 on the MFC

Geez I hate hybrid CATOS! :)

What have I missed?

I have this problem too.
0 votes
Correct Answer by Edison Ortiz about 8 years 9 months ago

You aren't missing anything.

One of the restrictions from NetFlow:

In PFC3B or PFC3BXL mode with Release 12.2(18)SXE and later releases, NetFlow supports bridged IP traffic. PFC3A mode does not support NetFlow bridged IP traffic.

Please see:

http://www.cisco.com/en/US/docs/switches/lan/catalyst6500/ios/12.2SXF/native/configuration/guide/netflow.html

NetFlow isn't supported in CatOS and it inspects 'routed' flows. You should be able to configure it in the MSFC.

HTH,

__

Edison.

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Correct Answer
Edison Ortiz Fri, 04/11/2008 - 13:33

You aren't missing anything.

One of the restrictions from NetFlow:

In PFC3B or PFC3BXL mode with Release 12.2(18)SXE and later releases, NetFlow supports bridged IP traffic. PFC3A mode does not support NetFlow bridged IP traffic.

Please see:

http://www.cisco.com/en/US/docs/switches/lan/catalyst6500/ios/12.2SXF/native/configuration/guide/netflow.html

NetFlow isn't supported in CatOS and it inspects 'routed' flows. You should be able to configure it in the MSFC.

HTH,

__

Edison.

dmooreami Mon, 04/14/2008 - 05:50

Thanks. For security, this VLAN is L2 only, there is no L3 counterpart in the MFC. So, no "netflow" for this interface. :)

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