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In the exhibit, all routers within each AS are configured for Anycast RP. All intra-AS routers are configured within the same MSDP mesh group. Inter-AS multicast has been enabled using MSDP without MSDP mesh groups.
Which statement is true?
A . The AS border routers allow TCP port 636 in their infrastructure ACLs.
B . Duplicate SA messages may be received in AS2.
C . SA messages from R5, R7, or R8 are not forwarded to AS1.
D . Inter-AS MSDP peerings must be configured on the AS border routers.
Answer: B