一种任意子路径的带宽测量方法  

A Methodology for Measuring Bandwidth on Arbitrary Sub-path

作　　者：贾圣文[1] 高仲合[1] 赵金龙[1] 

机构地区：[1]曲阜师范大学计算机学院,山东日照276826

出　　处：《通信技术》2011年第1期115-117,120,共4页Communications Technology

摘　　要：随着Internet用户数和网络复杂度的激增,人们对网络性能提出了更高的要求,而带宽测量已经成为一种网络性能研究的重要手段。这里提出的任意子路径的瓶颈带宽测量方法,采用包列作为探测报文,基于单端测量,可以在一条超路径的两端测量任意子路径的带宽,并且能定位出此链路,解决了在测量路径两端难以部署测量设施问题。最后用NS2仿真工具作了实验验证,在多种不同的背景流量情况下的实验结果表明此方法准确有效。With the explosive increase in the number of internet users and the complexity of network,people are posing a higher requirement for network performance.Bandwidth measurement has become one of the most important methods in the research of internet performance.The paper presents a bandwidth measurement algorithm based on probe gap model,which could measure the bottleneck bandwidth of arbitrary sub-path and locate the bottlelink easily,thus overcoming the difficulty in installation of measuring tools at both ends of the path.This paper discusses performance of the algorithm in simulation circumstances.NS2 simulation tools are applied to experiments under various cross traffic,and the experiment results prove the accuracy and effectiveness of the proposed method.

关 键 词：子路径 带宽测量 瓶颈链路定位 背景流量 仿真 

分 类 号：TP393.06[自动化与计算机技术—计算机应用技术]