What is the main component of Unified MPLS?
A.
Multiple IGPs in the network are used, where the loopback IP addresses of the PE routers are
aggregated on the area border routers.
B.
Confederations are used to provide scalability.
C.
The loopback prefixes from one IGP area are redistributed into BGP without changing the next
hop.
D.
The ABR is a BGP route reflector and sets next-hop to self for all reflected routes.