A network engineer wants to deploy a VPLS service within the MPLS backbone. The backbone
expert team advises that LDP for signaling is used.
Which two characteristics of LDP would influence their decision? (Choose two.)

A.
BGP does not need to be run on the PE device.

B.
Non-convergence with IP VPN operation.

C.
There is no autodiscovery.

D.
LDP signaling requires a loopback-based router ID.

E.
CDP is not required on the PE routers.