On an MPLS VPN network, which interface is used by PEs to set up an MP-IBGP peer relationship?

On an MPLS VPN network, which interface is used by PEs to set up an MP-IBGP peer relationship?
A . PE interface connected to a P router
B . PE interface connected to a CE
C . Loopback interface
D . Any interface can be used

View Answer

Answer: C