[nsp] Colo DC setup

[sthaug at nethelp.no]

> > If you can do all your peering based on Ethernet connections, 6500
> > with Sup2/MSFC2/PFC2 or better can be *very* good for BGP peering.
> > We're very happy with our 6509s used for just this purpose. We have
> > several full and partial views on each 6500.
> 
> How many iBGP and eBGP peers? I've haven't had the time to beat our
> testnet 7609 (Sup2 et al), but I wouldn't trust it as a full loaded
> peering box.

We certainly trust them that way. A couple of examples:

- Box with 3 full views and 18 partial views. 4 iBGP and 17 eBGP peers.
- Box with 2 full views and 49 partial views. 4 iBGP and 47 eBGP peers.

> > Note that Sup2/MSFC2/PFC2 with full routing tables no longer work
> > with uRPF due to the size of the routing tables.
> 
> Sad as uRPF, strict or loose, are nice features.

Agreed. We'll probably upgrade to Sup720 when the budget permits it!

Steinar Haug, Nethelp consulting, sthaug at nethelp.no