摘要
网络带宽表征网络传输信息的能力,是衡量网络服务质量的重要指标.本文在分析IP网带宽测量的重要作用及其技术分类的基础上给出了链路/路径带宽、可用带宽、批量数据传输能力等测度定义,系统总结了当前最具代表性的各种IP网带宽测量技术,剖析了它们的内在机理及各自优缺点,同时介绍了多种对应的开源带宽测量工具,并对影响带宽测量收敛速度、准确度的因素进行了讨论,最后对带宽测量的应用前景和研究趋势进行了展望.
Bandwidth is the metric used to describe the network information transfer capacity. It is an important measure to evaluate the quality of services in a network. This paper emphasizes the importance and classifies the techniques of bandwidth measurement for IP networks. It gives the def＇mitions of measures, such as link / path bandwidth, available bandwidth and bulk data transfer capacity, and analyzes the principles and merits of typical bandwidth measurement techniques. It also introduces several corresponding open source tools for these measurements, and discusses the main factors which impact the measuring constringency speed and accuracy. It finally gives a view of further research and application trends in this area.
出处
《电子学报》
EI
CAS
CSCD
北大核心
2006年第7期1301-1310,共10页
Acta Electronica Sinica
基金
国家自然科学基金(No.90604019
60472067
60502037)
973国家重点基础研究发展规划基金(No.2006CB701306
2003CB314806)
中国下一代互联网示范工程基金(No.CNGI-04-8-1D)
关键词
带宽测量
链路带宽
路径带宽
可用带宽
批量数据传输能力
bandwidth measurement
link capacity
path capacity
available bandwidth
bulk transfer capacity
