[c-nsp] ISP / MPLS "POP" design

[Adam Vitkovsky]

> For BGP to take over the duties of an IGP, I'd reckon a sub- BGP 
> protocol that does not interfere with the mature path- vector BGP 
> of old, or knobs that can enable the link state portion of mature 
> BGP in ways that do not interfere with normal global BGP 
> operations. 

Yes the most convenient way to implement this would be yet another AFs, even
talking to a different sub-process (e.g. spf-router process). 


adam