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

[Eric Kagan]

> 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 ?

> 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.

Eric