3.1.5.5 Processing a POLLACK Packet

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The server MUST validate that the POLLSeqNo field (section 2.2.10) in the POLLACK packet matches the value (NextPollSeqNo – 1) (section 3.1.1.1).

The protocol MUST send a POLLACK Trigger to the WDS Multicast Application Protocol, as specified in [MS-WDSMA], to communicate that the payload has been received in the packet in the AppData and AppDataLen fields.