Abstract:Numerous studies have shown that packet reordering is common,especially at wireless and Satellite networks where there are high degree of parallelism and different link speeds.Packets reordering decreases TC Pperformance,because it leads to over estimation of network congestion.The CETEN(Cumulative Explicit Transport Error Notification) has solved the overestimation caused by packet corruption.However,it does not consider the reordering at wireless network,which makes the LEAST(Loss Estimations AlgorithmS for TCP) loss rate value imprecise.The solution is based on explicit spurious retransmit notification at receiver side,and signals the sender packet loss caused by reordering packet.This mechanism can improve precision of LEAST and make the TC Pmore robust.The method is showed efficient in experiment.