摘要：Queue management schemes at routers and congestion avoidance schemes at end points cooperate to provide good congestion solutions in computer networks. While queue management schemes are still being developed, research on congestion avoidance has come a long way to serve the bandwidth requirement of the networks (e.g. high speed networks, data centers, etc.) at the order of 10Gbps. Because of considerable lack of the evaluation research work, there is no consensus on the choice of the queue management algorithms over these networks. To the best of our knowledge, this is the first work that presents the experimental study of the effect of various queue management schemes on high speed TCP variants in a 10Gbps network environment. Evaluations of queue management schemes such as Drop-tail, RED, CHOKe, and SFB are presented with popular high speed TCP variants such as RENO, HSTCP, CUBIC, and VEGAS over CRON, a 10Gbps high speed network testbed. Performance results are presented for several important metrics of interest such as link utilization, intro-protocol fairness, RTT fairness, delay and computational complexity. We argue the importance of explicit consideration of the basic tradeoffs between TCP variants and router parameters that network designers must face when building high speed networks.
