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arXiv 1201.0834cs.NI
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互联网内容提供方的拓扑趋势

Topological Trends of Internet Content Providers

Yuval Shavitt, Udi Weinsberg

摘要:

互联网是不断变化的,它的层次结构最近被证明变得更加扁平。最近对域间流量的研究表明,大型内容提供方通过绕过第1层网络并更接近用户来推动这一变化,使他们能够节省传输成本并减少对传输网络的依赖,因为正在部署新服务,流量整形变得越来越流行。在本文中,我们首先从自治系统(AS)图的拓扑角度来看,在不断发展的大型内容提供方网络的连接。我们进行了为期5年的纵向研究的拓扑趋势的大型内容提供方,通过分析几个大型内容提供方,并比较这些趋势的大型一级网络。我们研究的网络,邻居的多样性和地理分布,他们的层次结构,通过IXP作为一种方便的方法对等,和他们的中心的连接趋势。我们的观察表明,内容提供方逐渐增加和多样化他们的连接,使他们能够提高他们在图中的中心地位,因此,随着时间的推移,一级网络失去主导地位。

英文摘要:

The Internet is constantly changing, and its hierarchy was recently shown to become flatter. Recent studies of inter-domain traffic showed that large content providers drive this change by bypassing tier-1 networks and reaching closer to their users, enabling them to save transit costs and reduce reliance of transit networks as new services are being deployed, and traffic shaping is becoming increasingly popular. In this paper we take a first look at the evolving connectivity of large content provider networks, from a topological point of view of the autonomous systems (AS) graph. We perform a 5-year longitudinal study of the topological trends of large content providers, by analyzing several large content providers and comparing these trends to those observed for large tier-1 networks. We study trends in the connectivity of the networks, neighbor diversity and geographical spread, their hierarchy, the adoption of IXPs as a convenient method for peering, and their centrality. Our observations indicate that content providers gradually increase and diversify their connectivity, enabling them to improve their centrality in the graph, and as a result, tier-1 networks lose dominance over time.

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。

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