You are asked to design a Layer 2 VPN service for a service provider network that supports Ethernet and ATM transport.
Which two Layer 2 VPN technologies will meet this requirement? (Choose two.)
A . LDP-signaled VPLS, using draft martini encapsulation
B . BGP-signaled VPLS, using the RFC 4448 Layer 2 frame format
C . LDP Layer 2 circuit, using the RFC 4448 Layer 2 frame format
D . BGP Layer 2 VPN, using draft-Martini encapsulation
Answer: C,D