[c-nsp] Cat 6500 and counters

[Gert Doering]

Hi,

On Thu, Apr 28, 2005 at 01:09:33PM +0400, Alexandre Snarskii wrote:
> > Can someone else confirm this, that "unsampled netflow" will be a 
> > CPU problem?
> 
> No, netflow does not have any impact on CPU at all - netflow statistics 
> collected at "hardware" level.

This is good news.

> PS: one more limitation - you will not be able to limit router to 
> collect netflow data on just some interfaces - it will collect 
> data on all interfaces. 

Thanks for the warning.  This will put some load on the collector
infrastructure ("weed out flows with source or destination interface
*here*"), but this is something we can handle.

thanks for your advice,

gert

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Gert Doering - Munich, Germany                             gert at greenie.muc.de
fax: +49-89-35655025                        gert at net.informatik.tu-muenchen.de