[c-nsp] Route Reflector Design

[Pete Templin]

Mike Johnson wrote:

> Got that, now for a large network would you create a backbone area (OSPF)
> for regionalization of routes
> and make routers within the region into other areas? Its the underlying IGP
> design that makes all the connector nets to POPs available my main concern.

Would you be hitting anywhere close to 5,000 (nodes plus links plus 
loopbacks)?  If not, single area seems to be the better bet.

Multi-area becomes almost distance-vector: there's a vector to the 
backbone area, a vector across the backbone area, and a vector to the 
exit point.  Ick.

pt