A More Accurate Picture
n Early analysis does not accurately model real TCP
stacks
n With large RTO granularity, interference is
unlikely, if time required for link-level
retransmission is small compared to TCP RTO
Standard TCP RTO granularity is often large (500 ms)
Minimum RTO (2*granularity) is large enough to allow
a small number of link level retransmissions, if link
level RTT is relatively small
Interference due to timeout not a significant issue when
wireless RTT small, and RTO granularity large