Deep Diving into Africa's Inter-Country Latencies
Deep Diving into Africa's Inter-Country Latencies
复制标题
深入探讨非洲国家间的延迟
DOI：
10.1109/infocom.2018.8486024
复制
发表时间：
2018
期刊：
影响因子：
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通讯作者：
Gareth Tyson
中科院分区：
文献类型：
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作者：
Agustin Formoso;Josiah Chavula;Amreesh Phokeer;A. Sathiaseelan;Gareth Tyson
非洲的互联网发展迅速，但在性能和普及程度方面仍远远落后于其他地区。这显然对非洲居民有负面影响，但也对设计未来网络技术的组织有影响，这些技术可能会在该地区部署。本文提出了一种测量运动方法来探索非洲互联网的现状。利用整个大陆的有利位置，我们对非洲的国家间延误进行了首次大规模测绘。我们的分析揭示了一些集群，在这些集群中，各国建立了低延迟互联互通，消除了非洲内部通信普遍薄弱的神话。不幸的是，这并没有扩展到欧洲大陆的其他地区，这些地区通常遭受过高的延迟，通常超过300毫秒。我们发现，在许多情况下，到达欧洲或北美的网络比到达非洲其他地区的网络要快。通过绘制互联网络拓扑，我们确定了基础设施中的一些缺点，最明显的是过度依赖洲际运输提供商。
The Internet in Africa is evolving rapidly, yet remains significantly behind other regions in terms of performance and ubiquity of access. This clearly has negative consequences for the residents of Africa, but also has implications for organisations designing future networked technologies that might see deployment in the region. This paper presents a measurement campaign methodology to explore the current state of the African Internet. Using vantage points across the continent, we perform the first large-scale mapping of inter-country delays in Africa. Our analysis reveals a number of clusters, where countries have built up low delay interconnectivity, dispelling the myth that intra-communications in Africa are universally poor. Unfortunately, this does not extend to the remainder of the continent, which typically suffers from excessively high delays, often exceeding 300ms. We find that in many cases it is faster to reach European or North American networks that those in other regions of Africa. By mapping the internetwork topology, we identify a number of shortcomings in the infrastructure, most notably an excessive reliance on intercontinental transit providers.