[c-nsp] Upgrading 3x DS-3 to 3x OC-3/100Mbs

[Rick Ernst]

On Fri, 2 Sep 2005, Eric Kagan wrote:

:>> We currently have 7206 VXRs fronting the DS-3s with 7500s in
:>> the core acting as route-relector servers.  The 7206s are
:>> running at about 1% CPU load per mb of inbound traffic; so we
:>> are seeing >= 40% CPU load.
:>
:>Which NPE ?  How much RAM ?

NPE-300 - 256MB
:>
:>> We need new terminating equipment for the OC-3s.  I'd rather
:>> not stick everything in one box, or even more than one
:>> upstream into a single box. My initial thought is to throw
:>> some 7505s at the problem, but wonder if there is a better
:>> and cost-effective way to land the OC-3s and come out with
:>> either multiple FE or GigE to feed the core.
:>
:>NPE-400, G1 can be more powerful than a 750x.  We just upgraded 5
:>7206VXR/300/256MB to 400, 512MB for much cheaper than new routers.

Based on the performance of the NPE-300, it doesn't "feel" like an NPE-400
would gain us much.  I don't have any experience with the NSE-1 or other
processors.

I also just noticed that the 7505 is only single power-supply, so that
idea isn't going to go very far.