We give a new labeling algorithm for sliding windows--a fair adaptive labeling algorithm on congestion control mechanism.The algorithm approximately identifies TCP and UDP flows

moderately distinguishes labels

and avoids the impact of congestion control mechanism on fairness.Based on the fine-grained description and prediction of the network congestion problem

the paper presents the self-adaption of the ratio of yellow package infused by each flow

and gives consideration to the impact on fairness caused by the state of network congestion.Compared with other labeling algorithms of sliding window

simulation experiment results show that FCA-ItswTCM has better effects on ensuring fairness between TCP and UDP flows and raising resource utilization and system stabilization.