大带宽时延积网络中TCP,HighSpeed TCP及XCP性能比较  

Performace Comparison of TCP, HighSpeed TCP and XCP in High BDP Network

作　　者：张福杰[1] 潘理[1] 李建华[1] 

机构地区：[1]上海交通大学信息安全工程学院,上海200030

出　　处：《计算机工程》2006年第2期113-116,共4页Computer Engineering

摘　　要：介绍了TCP协议在大带宽时延积网络(HighBDP)环境中存在的问题,论述了HighBDP网络环境中目前存在的两种解决拥塞控制的方法,一种是只修改端节点拥塞控制协议如HighSpeedTCP,另一种是需要路由器进行速率协同调整的机制,如XCP协议。然后对比三者在瓶颈链路利用率、公平性、TCP-Friendly、动态特性等指标上的性能,仿真结果表明XCP在这些性能指标上优于前两者,但同时在分组中增加了更多信息,增加了路由器的工作负荷以及布置困难。The paper introduces some problems of TCP in high bandwith delay product network and gives two method to solve these questions. One is only to update the endpoint protocol such as HighSpeed TCP, the other is a new mechanism such as XCP protocol, which needs router to update the feedback of each packet. The paper simulates these three protocols and finds that XCP has the best performance of three protocols except the difficulty of deployment, increasing of router load and much additional informations in the packets.

关 键 词：大带宽时延积 显式控制协议 高速TCP 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]