[c-nsp] Best practice - Core vs Access Router

[Andy B.]

On Tue, Feb 9, 2010 at 3:13 PM, Jon Lewis <jlewis at lewis.org> wrote:

> If all of that traffic is transiting between the 6748 and 6704s, is it
> possible you're filling (perhaps overfilling) the 40Gbps fabric the 6748 has
> to the rest of the chassis during short traffic spikes?

The 6748 is not really doing that much. Maybe 3-4 GBps.

Incoming Transit and IBGP comes with one 6704.
The other 6704 is port-channeled into the VLAN

> With that much going on, I'm surprised you're using a single 6509 vs having
> things split between a pair or more of them.  Put some transit and some
> customers on each...that way if one has an issue, needs a software upgrade,
> etc., you can do a reload without the network going completely offline.  Or
> are you already doing that, and the troubled 6509 is just one of multiple?

This is already partially the case - I am working on improvements here
as well :)

Andy