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计算机工程 ›› 2009, Vol. 35 ›› Issue (6): 136-138. doi: 10.3969/j.issn.1000-3428.2009.06.047

• 网络与通信 • 上一篇    下一篇

可用带宽测量算法的研究

于 靖,杨英杰,常德显   

  1. (解放军信息工程大学电子技术学院,郑州 450004)
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2009-03-20 发布日期:2009-03-20

Research on Available Bandwidth Measurement Algorithm

YU Jing, YANG Ying-jie, CHANG De-xian   

  1. (School of Electronic Technology, PLA Information Engineering University, Zhengzhou 450004)
  • Received:1900-01-01 Revised:1900-01-01 Online:2009-03-20 Published:2009-03-20

摘要: 可用带宽是反映网络状态的主要参数,该文通过研究现有可用带宽测量算法,并分析背景流量及数据包排队情况,发现现有算法固有的估值误差特征,在此基础上设计并构建仿真测量环境,以路径的负载和突发背景流量的变化作为主要依据,测试目前较流行的2种可用带宽测量工具Pathload和Spruce。

关键词: 可用带宽, 包间隔模型, 包速率模型

Abstract: Available bandwidth is a main parameter of the network performance. This paper discusses the presented algorithm for bandwidth measurement, and analyzes the background flow rate and the queue of data packet, which discovers the inherent characters of the error for estimation value. A simulation test environment is designed and set up, and based on the load of the path and the variety of background flow rate, the publicly available bandwidth estimation tools such as Pathload and Spruce are tested.

Key words: available bandwidth, Packet Gap Model(PGM), Packet Rate Model(PRM)

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