[c-nsp] Setting "weight 255" as default for customer BGP with uRPF strict

[Pete Templin]

Brian Feeny wrote:

> Customer Router C connects to your Router A and  your Router B.
> Customer sets localpref to 100 on network A to router A, and 70 on 
> network B to router A
> Customer sets localpref to 100 on network B to router B, and 70 on 
> network A to router B

Customer connects to OtherNetworkG, and announces longer specifics of 
networks A and B to OtherNetworkG.  Routers A and B learn these longer 
prefixes, and their FIBs no longer point to Router C.  Most specific 
announcement is a bigger hammer than weight, so strict mode backfires.

pt