全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...
软件学报  2009 

Methodology for Measuring Available Bandwidth on Arbitrary Links
一种测量任意链路可用带宽的方法

Keywords: link available bandwidth,active probing,network monitoring,Internet measurement,performance evaluation
链路可用带宽
,主动探测,网络监控,因特网测量,性能估计

Full-Text   Cite this paper   Add to My Lib

Abstract:

The available bandwidth measurement is important for many Internet applications, such as network behavior analysis, quality of service (QoS) verification, and so on. Existing available bandwidth measurement toolsmainly measure the available bandwidth for a whole network path, and provide information about the tight link(s)other than vital links. Therefore, this paper presents a novel algorithm called LinkPPQ (trains of pairs of packet-quartets used to measure available bandwidth of arbitrary links), which uses trains of pairs of packet-quartets to measure the available bandwidth of any link along the path, and track the variety of the cross-traffic on it. This paper studies the performance of LinkPPQ in both simulation circumstances and the laboratorial network.Simulation results show that LinkPPQ can accurately measure the available bandwidth of each link on the paths thathave one narrow link or multiple narrow links, under different cross-traffic loads. Most measurement errors are under 30%, and the results are stable. The laboratorial experimental results show that LinkPPQ can accuratelymeasure the available bandwidth in the following situations: a) measuring a link with capacity 100Mbps from a link with capacity 10Mbps; b) monitoring the link with capacity that is ten times of the narrow link next to it on the path;c) estimating the available bandwidth of the narrow links on a path having multiple narrow links.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133