What are three basic functional requirements when configuring MPLS layer 2 VPLS? (Choose three)
A.
A CE to PE routing protocol must be used to exchange routing prefixes
B.
A full mesh of pseudowire (emulated VC) connections must be used between PE routers
C.
Each PE must have a VFI configured
D.
LDP protocol must be running
E.
Auto discovery is needed to identify endpoints outside of the VPLS domain.