An Int64 value that specifies the maximum number of milliseconds permitted by a TCP implementation for the retransmission time-out value.

TCP starts a retransmission timer when each outbound segment is passed to the network layer (IP). If no acknowledgement is received for the data in the segment before the timer expires, the segment is retransmitted. The timer can be set to any value between the [!:MinimumTransmissionTimeOut] value and the [!:MaximumTransmissionTimeOut] value.