IMPROVING FAIRNESS OF RED AIDED BY LIGHTWEIGHT FLOW INFORMATION
RED is the only active queue management mechanism recommended by IETF. Though RED is successful in network congestion control and link utilization enhancement, it suffers from two problems, the stability and the fairness. The fairness problem means 1) RED has little affects on unresponsive flows in congestion control--the UDP flow for example; 2) responsive flows with different packet size or round trip time (RTT) share the bandwidth of the bottleneck link unfairly when congestion occurs. An enhanced version RED, LwFRED, which improves the fairness of RED aided by light-weight flow information, is proposed. Extensive simulations by NS2 demonstrate that the LwFRED could improve web flows’ performance while discipline misbehaving flows efficiently. Though LwFRED is flow based, its scalability is acceptable.
Congestion Control AQM RED Fairness
Sun Hanlin Jin Yuehui Cui Yidong Wang Hongbo Cheng Shiduan
State Key Laboratory of Networking and Switching Technology Beijing University of Posts and Telecom State Key Laboratory of Networking and Switching Technology Beijing University of Posts and Telecom
国际会议
北京
英文
335-339
2009-10-18（万方平台首次上网日期，不代表论文的发表时间）