NTSendSession(
  IN  tDGRAM_SEND_TRACKING  *pTracker,
  IN  tLOWERCONNECTION      *pLowerConn,
  IN  PVOID                 pCompletion
  );
Routine Description:

    This Routine handles seting up a DPC to send a session pdu so that the stack
    does not get wound up in multiple sends for the keep alive timeout case.

Arguments:

    pIrp - a  ptr to an IRP

Return Value:

    NTSTATUS - status of the request