Within the service provider IP/MPLS core network, what must be implemented to enable Layer 3 MPLS VPN services?

Within the service provider IP/MPLS core network, what must be implemented to enable Layer 3 MPLS VPN services?
A . IS-IS or OSPF on all the PE and P routers
B . MP-BGP between the PE routers
C . RSVP on all the PE and P routers
D . targeted LDP between the PE routers
E . LDP between the CE and PE routers

View Answer

Answer: B