[c-nsp] 6500 Netflow

[Gert Doering]

Hi,

On Thu, Apr 17, 2008 at 10:25:46AM -0700, Ian Cox wrote:
> >I've heard different rumors on the actual implementation, though.  So maybe
> >you can clarify?
> >
> >One rumor was that SXH and SR* still have *all* flows in the netflow TCAM,
> >and only filter on output, in the RP CPU.
> 
> This is not how per interface works. Flows are only created in the 
> netflow table for interfaces it is enabled on. Interfaces without 
> netflow enabled drive a null flow mask and this results in no entries 
> being created in the netflow table for those interfaces. If you 
> enable nde on an interface this results in a non-null flow mask being 
> used and an entry being created in the table.

This is *very* good news.  

(And which is why I explicitely flagged it as "rumor" - because nobody 
seemed to know for sure).

If Cisco ever ships our 6506 (as replacement for the 7606-S that can't
run SXH) I'm looking very much forward to test-drive SXH2...

gert

-- 
USENET is *not* the non-clickable part of WWW!
                                                           //www.muc.de/~gert/
Gert Doering - Munich, Germany                             gert at greenie.muc.de
fax: +49-89-35655025                        gert at net.informatik.tu-muenchen.de
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