Netflow stats on 6509 hybrid Layer 2 vlan only

Answered Question
Apr 11th, 2008
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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?

Correct Answer by Edison Ortiz about 9 years 2 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
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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
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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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