深入了解BitTorrent所在地
Deep Diving into BitTorrent Locality
摘要：
最近，大量的工作都是在ISP内本地化BitTorrent流量，以避免过多的、往往是不必要的传输成本。已经提出了几种架构和系统，并且来自特定ISP和一些种子的初步结果令人鼓舞。在这项工作中，我们试图加深和扩大我们对局部性及其潜力的理解。在特定的ISP中，我们考虑了成千上万的并发种子，从而捕捉到了ISP范围内的影响，而这些影响是不能通过只看少数种子来理解的。其次，我们超越了个别案例研究，并根据我们的数据集中代表的用户数量为前100名ISP提供了结果，该数据集包含超过390万个并发对等体，每天在11K AS中传播超过2000万个。我们开发可扩展的方法，使我们能够处理这个巨大的数据集，并回答问题，如：“\emph{what is the minimum and the maximum transit traffic reduction across hundreds of ISPs?}“，“\emph{what are the win-win boundaries for ISPs and their users?}“，“\emph{what is the maximum amount of transit traffic that can be localized without requiring fine-grained control of inter-AS overlay connections?}“，“\emph{what is the impact to transit traffic from upgrades of residential broadband speeds?}“。
英文摘要：
A substantial amount of work has recently gone into localizing BitTorrent traffic within an ISP in order to avoid excessive and often times unnecessary transit costs. Several architectures and systems have been proposed and the initial results from specific ISPs and a few torrents have been encouraging. In this work we attempt to deepen and scale our understanding of locality and its potential. Looking at specific ISPs, we consider tens of thousands of concurrent torrents, and thus capture ISP-wide implications that cannot be appreciated by looking at only a handful of torrents. Secondly, we go beyond individual case studies and present results for the top 100 ISPs in terms of number of users represented in our dataset of up to 40K torrents involving more than 3.9M concurrent peers and more than 20M in the course of a day spread in 11K ASes. We develop scalable methodologies that permit us to process this huge dataset and answer questions such as: "\emph{what is the minimum and the maximum transit traffic reduction across hundreds of ISPs?}", "\emph{what are the win-win boundaries for ISPs and their users?}", "\emph{what is the maximum amount of transit traffic that can be localized without requiring fine-grained control of inter-AS overlay connections?}", "\emph{what is the impact to transit traffic from upgrades of residential broadband speeds?}".
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
