While Troubleshooting an AToM L2VPN Service, a Network Consultant Notices

Multiple Choice

While troubleshooting an AToM L2VPN service, a network consultant notices that the AC Layer 2 encapsulations are different. Which action should the consultant take in order to make the MPLS L2VPN work?

A) tag-rewrite on the ingress and egress PE router
B) interworking IP configuration on the last PE router before label disposition
C) nonrouted interworking setup to properly translate only the Layer 2 information from the AC
D) interworking IP configuration on both the AC terminations on the PEs