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| 链路带宽测量方法改进 | |
| 引用本文： | 谢高岗,李忠诚,张大方,汤艳霞. 链路带宽测量方法改进[J]. 计算机研究与发展, 2003, 40(1): 68-74 |
| 作者姓名： | 谢高岗 李忠诚 张大方 汤艳霞 |
| 作者单位： | 1. 湖南大学计算机与通信学院,长沙,410082;中国科学院计算技术研究所,北京,100080 2. 中国科学院计算技术研究所,北京,100080 3. 湖南大学计算机与通信学院,长沙,410082 4. 西安电子科技大学研究生院,西安,710071 |
| 基金项目： | 国家自然科学基金项目 (60 2 73 0 70 )，国家“八六三”高技术研究发展计划项目基金 (2 0 0 2AA12 10 3 2 ) |
| 摘 要： | 链路带宽是网络性能分析，容量优化规划的基本指标，链路带宽测量常用的方法是VPS（variable packet size),但VPS具有误差累计和背景流量影响的缺陷，对VPS方法进行改进，提出和实现一个任意链路带宽测量方法PTVS（packet train with variable size)，消除逐跳测量造成的误差累计和背景流量影响，测量实验表明，PTVS具有精确，高效，迅速的特点，PTVS可测量的其他性能指标还包括RTT，单向延迟，丢包率，端到端瓶颈带宽以及链路利用率。 |
| 关 键 词： | 链路带宽测量方法 网络流量 网络性能分析 计算机网络 误差累计 背景流量 |
An Improved Method for Link Bandwidth Measurement |
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| XIE Gao-Gang ,,LI Zhong-Cheng ,ZHANG Da-Fang ,and TANG Yan-Xia. An Improved Method for Link Bandwidth Measurement[J]. Journal of Computer Research and Development, 2003, 40(1): 68-74 | |
| Authors: | XIE Gao-Gang LI Zhong-Cheng ZHANG Da-Fang and TANG Yan-Xia |
| Affiliation: | XIE Gao-Gang 1,2,LI Zhong-Cheng 2,ZHANG Da-Fang 1,and TANG Yan-Xia 3 1 |
| Abstract: | Link bandwidth is a basic metric for network performance analysis and capacity planning and optimization The commonly used method for link bandwidth measurement is VPS(variable packet size) with limitation of precision affected by deviation accumulation and cross traffic An improved bandwidth measurement method based on VPS named PTVS(packet train with variable size) is proposed for random link PTVS can elminate infections of deviation accumulation caused by hop-by-hop measurement and cross traffic It is shown that PTVS has merits of precision, high efficiency and speed from measurement on operated network The other metrics offered by PTVS include RTT, one-way delay, packet loss rate, end-to-end bottleneck bandwidth, and utilization of link |
| Keywords: | link bandwidth measurement algorithm deviation accumulation cross traffic |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |