Which three statements about L2TPv3 are true?()
A. L2TPv3 Frame Relay support includes only 32-bit DLCI addressing
B. L2TPv3 sessions do not support Frame Relay LMI interworking
C. Multipoint DLCI is not supported
D. To use DCE or a Network-to-Network Interface on a Frame Relay port, you must configure the frame-relay switching command
E. L2TPv3 feature does not support Frame Relay extended addressing