IP网络中的拥塞控制  

Congestion Control in IP Network

作　　者：任丰原[1] 林闯[1] 刘卫东[1] 

机构地区：[1]清华大学计算机科学与技术系,北京100084

出　　处：《计算机学报》2003年第9期1025-1034,共10页Chinese Journal of Computers

基　　金：国家自然科学基金 ( 60 2 73 0 0 9);国家"九七三"重点基础研究发展规划项目 (G19990 3 2 70 7);国家"八六三"高技术研究发展计划项目 ( 2 0 0 1AA112 0 80 );华为研究基金资助

摘　　要：以拥塞控制机制演化的历史为线索 ,回顾了IP网络中已有的拥塞控制技术 ;总结了TCP流量控制、端到端流量控制和中间节点增强机制等各研究子方向中需要解决的问题 ;重点分析了主动队列管理这一热点领域中已有策略和算法的优缺点 ,并在此基础上 ,归纳和阐述了大多数算法所采用的启发式设计加仿真试验验证的模式存在的不足 ;提出了应用控制理论中的分析和设计方法研究网络拥塞控制的思路 。Combining with the evolution of congestion control mechanisms, the existed technologies for congestion avoidance and recovery in IP networks are reviewed. The unsolved problems and hot spots in subdiscipline, such as TCP flow control, end to end flow control and enhanced mechanism in intermediate nodes, are summarized, and the advantages and disadvantages of all kinds of schemes for active queue management are emphatically analyzed. Also the paper presents and discusses the drawbacks of heuristic designing combining with special simulation experiments used by most of network algorithms. Subsequently, a new approach to design and evaluate congestion control algorithm is presented based on control theory, and several interesting directions are provided.

关 键 词：IP网络 拥塞控制 INTERNET 服务质量 计算机网络 

分 类 号：TP393.4[自动化与计算机技术—计算机应用技术]