Question: What does the MBMS-GW-SSM-IP-Address AVP contain?
Option 1: The UE's IP address
Option 2: The BM-SC's IPv6 destination unicast address
Option 3: The Sgi-mb (control) plane IPv4 source multicast address
Option 4: The Sgi-mb (transport) plane IPv4 destination multicast address used by BM-SC for IP multicast encapsulation of application IP multicast datagrams.
Explanation: The MBMS-GW-SSM-IP-Address AVP contains the Sgi-mb (transport) plane IPv4 destination multicast address, which is used by the Broadcast Multicast Service Center (BM-SC) for encapsulating application IP multicast datagrams in IP multicast. This is crucial for efficient data transmission in mobile networks supporting packet-based services and interworking with Packet Data Networks (PDN).