Thomas Kunz
Systems and Computer Engineering
384
A More Accurate Picture
nEarly analysis does not accurately model real TCP stacks
nWith 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