A case study of large scale P2P video multicast

2007 International Conference on IP Multimedia Subsystem Architecture and Applications Pub Date : 2007-12-01 DOI:10.1109/IMSAA.2007.4559096

S. Agarwal, Deutsche Telekom

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引用次数: 18

Abstract

The availability of several P2P video multicast systems has enabled scalable and cost-effective video multicast on the Internet. We present several characteristics of a large scale P2P video multicast system of over 120,000 users. Our findings highlight several network provisioning issues that accentuate the difference between P2P video multicast and traditional IP multicast from a quality-of-service perspective. Further, our results also indicate that P2P video multicast suffers from slow channel tune-in times, further differentiating the service quality of P2P video multicast and QoS-enabled IP multicast. In addition, we illustrate how commercial grade P2P video multicast may require additional bandwidth resources through bandwidth augmenting server-farms, a result that counters the common perception that commercial P2P video multicast is a completely free content distribution platform. Our analysis indicates that some peers are widely spread across the IP address space that spans dozens of countries, indicating that traffic localization algorithms that use IP prefix-matching may not be efficient.

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以大规模P2P视频组播为例

一些P2P视频多播系统的可用性使得互联网上的视频多播具有可扩展性和成本效益。提出了超过12万用户的大型P2P视频多播系统的几个特点。我们的研究结果强调了几个网络配置问题，从服务质量的角度强调了P2P视频多播与传统IP多播之间的差异。此外，我们的研究结果还表明，P2P视频组播的频道调谐时间较慢，这进一步区分了P2P视频组播和支持qos的IP组播的服务质量。此外，我们还说明了商业级P2P视频多播如何通过带宽增加服务器场来需要额外的带宽资源，这一结果反驳了商业P2P视频多播是一个完全免费的内容分发平台的普遍看法。我们的分析表明，一些对等体广泛分布在跨越数十个国家的IP地址空间中，这表明使用IP前缀匹配的流量本地化算法可能效率不高。

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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来源期刊

2007 International Conference on IP Multimedia Subsystem Architecture and Applications

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