[c-nsp] BGP router upgrade

[Alexandre Durand]

It might be not directly related to your request but make sure you know 
in advance the amount of prefixes to load with BGP with sup720-3BXL as 
max tcam size is by default set in config=512K. We had an issue where 
the router crashed because of the number of prefixes reached max tcam 
512K (hardware capacity 1M prefixes) using vrf-lite. this can be checked 
with:
sh mls cef maximum-routes

FIB TCAM maximum routes :
=======================
Current :-
-------
  IPv4 + MPLS         - 512k (default)
  IPv6 + IP Multicast - 256k (default)

and  modified with
mls cef maximum-routes ...

Alexandre Durand