Montra: A large-scale DHT traffic monitor

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• 作者：Ghulam Memon^a ; ^{gmemon@cs.uoregon.edu}  ; [Author Vitae] ; Reza Rejaie^a ; ^{reza@cs.uoregon.edu}  ; [Author Vitae] ; Yang Guo^c ; ^{yang.guo@alcatel-lucent.com}  ; [Author Vitae] ; Daniel Stutzbach^b ; ^{daniel@stutzbachenterprises.com}  ; [Author Vitae]
• 关键词：Traffic measurement ; Peer-to-peer ; DHT ; Kad ; Azureus ; Monitors ; Characterization
• 刊名：Computer Networks
• 出版年：2012
• 期刊代码：28_13891286
• 类别：cp
• 出版时间：23 February, 2012
• 卷：56
• 期：3
• 页码：1080-1091
• 文件大小：1508 K

摘要

This paper presents a new technique, called Montra, for accurately capturing traffic in a widely deployed DHT. The basic idea is to make the traffic monitors minimally visible to participating peers to avoid disruption in the system. We describe how Montra leverages the required redundancy in published content and routing to minimize disruption of the system. Validations of Montra over two widely deployed DHTs, namely Kad and Azureus, show that it can accurately capture more than 90%of traffic destined to monitored peers. Furthermore, the lightweight nature of Montra allows it to monitor a large number of peers with a moderate amount of resources. We use Montra to characterize several aspects of traffic in our two target DHTs.