端到端路径容量测量工具性能分析  

Performance analysis of end-to-end path capacity measurement tools

作　　者：黎文伟[1] 张大方[2] 杨金民[2] 谢高岗[3] 

机构地区：[1]湖南大学计算机与通信学院,湖南长沙410082 [2]湖南大学软件学院,湖南长沙410082 [3]中国科学院计算技术研究所,北京100080

出　　处：《计算机应用》2006年第10期2275-2277,共3页journal of Computer Applications

基　　金：国家自然科学基金资助项目(60473031;60403031);国家863计划项目(2005AA121560);湖南省自然科学基金(05JJ30116)

摘　　要：分析已有路径容量测量工具的性能,定义了评价工具性能的指标集,在自行搭建的可控网络环境和可重复的多种背景流量条件下,对几种典型的测量工具性能进行实验评估。实验发现pathchar、clink等基于VPS技术的工具测量误差较大;pathrate准确性虽较高,但测量开销大。大背景流量下现有工具的准确性、测量开销等都不理想。The performance of current path-capacity measurement tools were analyzed and an index set for tools performance evaluation was set. And several typical path-capacity measurement tools were evaluated in a self-building controllable network under many repeatable cross traffic load conditions. The main findings include, VPS based tools such as pathchar, clink, have relatively larger measurement errors; although pathrate is more accurate, it has bigger measurement costs. When the cross traffic load is high, all of these tools are inaccurate and need great measurement costs.

关 键 词：网络测量 带宽测量 路径容量 性能分析 

分 类 号：TP393.06[自动化与计算机技术—计算机应用技术]