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List:       cisco-nsp
Subject:    Re: [c-nsp] Monitoring flows on Cat6500
From:       ken lindahl <lindahl () berkeley ! edu>
Date:       2004-11-30 17:38:24
Message-ID: 6.0.1.1.2.20041130092741.0776d9d8 () calmail ! berkeley ! edu
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At 08:08 AM 11/30/2004, Piltrafilla wrote:
> Is it possible to browse flows information using netflow accounting on
> a Cat6k with Sup1A acting as a pure l2 switch? or is it necessary a
> layer3 module such as MSFC in order to browse either export that
> information?

flow records can be exported from an L2-only cat6k, see the section
"Configuring NDE" in configuration guide for your version of catOS.
here's a url for v6.4 (pretty old, but that's what i've got in my
bookmarks file):

http://www.cisco.com/en/US/products/hw/switches/ps708/products_configuration_guide_chapter09186a008007fb11.html


netflow on these boxes uses a 32K cache, which can be a bit small
for some situations. it was too small for us, and dropped a lot of
records (note: the packets aren't dropped, just the flow records).

ken

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