TCP Reno: timeout
Compute RTO:
Variables: smoothed round-trip time (SRTT) and round-trip time variation (RTTVAR)
- SRTT = RTT, RTTVAR = RTT / 2, RTO = SRTT + K * RTTVAR
- RTTVAR = (1 - beta) * RTTVAR + beta * |SRTT – RTT|
- SRTT = (1 - alpha) * SRTT + alpha * RTT
- RTO = SRTT + K * RTTVAR
- K=4, alpha = 1/8, beta=1/4