Question: What does the MBMS-GW-SSM-IPv6-Address AVP contain?
Option 1: The Sgi-mb (transport) plane IPv6 prefix of the destination multicast address used by BM-SC for IP multicast encapsulation of application IP multicast datagrams.
Option 2: The source IP address of the MBMS-GW.
Option 3: The destination IP address of the PDN-GW.
Option 4: The tunnel endpoint identifier.
Explanation: The MBMS-GW-SSM-IPv6-Address AVP contains the Sgi-mb (transport) plane IPv6 prefix, which is used by BM-SC for IP multicast encapsulation of application IP multicast datagrams. This information is crucial for proper routing and forwarding of multicast traffic in the network.