[c-nsp] Cat 6500 and counters

[Gert Doering]

Hi,

On Wed, Apr 27, 2005 at 05:05:29PM -0700, Tim Stevenson wrote:
> There is no IPv6 NF support, it is on the roadmap. It requires NFv9, which 
> is not supported today. Both sup2 & sup720 support v5 NF for IPv4 unicast.

Thanks for this clarification.  Can you give a (rough) timeline for NFv9?

We're providing "production" IPv6 services today, and one of our problems
is that we already see IPv6 DoS attachs - and without NFv9, it's very 
difficult to quickly detect and trace them.

> But as mentioned elsewhere, the most bang for the buck is no doubt sup720 
> w/PFC3B, vs. sup2.

I'm a bit confused about this "PFC3B" and "DFC" business.

We have a number of existing cat6k line cards around (running right now
in a cat6k with Sup1A, and no MSFC), things like WS-X6408A-GBIC and 
WS-X6348-RJ-45.

Basically we want to re-use them, with the Sup720, to provide L3 routing
on the box now.  Am I correct in assuming that they will "just work", but
not have any distributed forwarding (that's what the DFC3 is needed for)?

What does the PFC* do, and does it has to match certain hardware levels /
feature card levels on the line cards?

thanks,

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