On the Effects of Overlay Localization on P2P Networks

C. Király, R. Lo Cigno
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引用次数: 0

Abstract

Recently several studies have been made on reducing overall network traffic by localizing P2P traffic. Interestingly, real world measurements show that these localization techniques often do not bring performance advantages to the P2P user, only to the underlying network by reducing average layer 3 hop count of individual transmissions. In this paper, we study the effects of localized traffic patterns on end-user performance, in the specific case of P2P-TV traffic.We find that, without assuming excess local networking resources (such as higher bandwidth), localization reduces end-user performance considerably due to the resulting clustered overlay structure. We investigate (though simulation) the amount of random overlay edges and the amount of local bandwidth surplus that can mitigate this negative effect of preferring local connections.
覆盖定位对P2P网络的影响
近年来,人们对通过P2P流量的局部化来降低整体网络流量进行了一些研究。有趣的是,实际测量表明,这些定位技术通常不会给P2P用户带来性能优势,只能通过减少单个传输的平均第3层跳数来给底层网络带来性能优势。在本文中,我们以P2P-TV流量为例,研究了本地化流量模式对终端用户性能的影响。我们发现,在不假设过多的本地网络资源(如更高的带宽)的情况下,由于产生的集群覆盖结构,本地化大大降低了最终用户的性能。我们研究了(通过模拟)随机覆盖边缘的数量和本地带宽剩余的数量,可以减轻偏好本地连接的这种负面影响。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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