3.1.5.4 Processing a POLL Trigger
The server MUST construct the POLL packet as specified in section 2.2.9 and set the fields of the packet as specified below.
PollSeqNo: MUST be set to the value of the NextPollSeqNo (section 3.1.1.1), and then increment the NextPollSeqNo by one.
BackOff: MUST be set to the value of PollBackOff (section 3.2.1.2).
AppData and AppDataLen: MUST be set to the payload provided by the POLL Trigger from the WDS Multicast Application Protocol, as specified in [MS-WDSMA].
The server MUST send the constructed POLL packet to the multicast address (section 3.1.1.1).
The server MUST provide the value of PollBackOff to the WDS Multicast Application Protocol in response to the POLL Trigger, as specified in [MS-WDSMA].