[c-nsp] Cat 6500 and counters

[sthaug at nethelp.no]

> > > What about netflow?  Does it work on the Sup2/MSFC2 and/or the Sup720?
> > > I saw one post claiming "v5 only", so IPv6 netflow isn't there?
> > 
> > Doubt v9 exports are there yet, but your biggest caveat will be that
> > you'll have to do sampled netflow to avoid killing the Sup cpu. This
> > is my single biggest gripe w/ the platform.
> 
> Can someone else confirm this, that "unsampled netflow" will be a 
> CPU problem?

We did unsampled netflow with Sup2/MSFC2/PFC2 at my previous employer,
total IP traffic through each box around 2 Gbps. Worked fine, and did
not kill the CPU. Sup720-3B should be at least as good.

Steinar Haug, Nethelp consulting, sthaug at nethelp.no