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Layer 2 Netflow statistics from Catalyst 4510R w/ Netflow services card.

Posted on 2010-08-23
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Last Modified: 2012-05-10
Not sure whether this is a Cisco or an Orion issue. I have a large LAN with a Catalyst 4510R w/netflow services card at the core. Also use Orion NPM (ver 10) w/ Netflow module. I am able to collect and display only Vlan statistics, so it seems that the interface must have an IP address to be monitored. Vlan statistics aren't that useful for me. Is it possible for Netflow to collect traffic statistics on the Catalyst physical interfaces, e.g. the fiber interfaces to my Catalyst 3560s at the edge? And for Orion NPM to monitor those stats?



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Question by:bloozmakr
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cdowdy earned 500 total points
ID: 33506540
I'm not sure that is possible without the links being L3. Take a look at this link and it's associated links. I hope this helps.

https://supportforums.cisco.com/docs/DOC-2566;jsessionid=3E0547D589702AFF18634F7AEDB89747.node0


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by:bloozmakr
ID: 33507027
I always suspected that was the case but that Cisco forum link is the first affirmation that specifically addressed Catalyst L3 switching and Netflow's inability to capture L2 data. Thanks!
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