Persistent Last-mile Congestion: Not so Uncommon
Persistent Last-mile Congestion: Not so Uncommon
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最后一英里持续拥堵：并不罕见
DOI：
10.1145/3419394.3423648
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发表时间：
2020
期刊：
影响因子：
--
通讯作者：
Kenjiro Cho
中科院分区：
文献类型：
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作者：
Romain Fontugne;Anant Shah;Kenjiro Cho
最后一英里是宽带连接的核心，因为最后一英里性能差通常意味着体验质量差。在这项工作中，我们调查最后一英里的延迟使用traceroute数据从RIPE Atlas探针位于646 AS和专注于经常性的性能下降。我们发现，在正常情况下，只有10%的AS中的探测器经历了持续的最后一英里拥堵，但我们在COVID-19爆发期间记录了55%的拥堵AS。持续的最后一英里拥塞并不罕见，它通常出现在大型眼球网络中，并且可能持续数年。在CDN访问日志数据的帮助下，我们分析了日本主要ISP的结果，日本是我们研究中受影响最严重的国家，并确定了共享传统基础设施中的瓶颈。
Last-mile is the centerpiece of broadband connectivity, as poor last-mile performance generally translates to poor quality of experience. In this work we investigate last-mile latency using traceroute data from RIPE Atlas probes located in 646 ASes and focus on recurrent performance degradation. We find that in normal times probes in only 10% ASes experience persistent last-mile congestion but we recorded 55% more congested ASes during the COVID-19 outbreak. Persistent last-mile congestion is not uncommon, it is usually seen in large eyeball networks and may span years. With the help of CDN access log data, we dissect results for major ISPs in Japan, the most severely affected country in our study, and ascertain bottlenecks in the shared legacy infrastructure.
DOI：
10.1145/3230543.3230549
发表时间：
2018-08
期刊：
Proceedings of the 2018 Conference of the ACM Special Interest Group on Data Communication
影响因子：
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作者：
A. Dhamdhere;D. Clark;Alexander Gamero-Garrido;M. Luckie;Ricky K. P. Mok;Gautam Akiwate;Kabir Gogia;Vaibhav Bajpai;A. Snoeren;K. Claffy
通讯作者：
A. Dhamdhere;D. Clark;Alexander Gamero-Garrido;M. Luckie;Ricky K. P. Mok;Gautam Akiwate;Kabir Gogia;Vaibhav Bajpai;A. Snoeren;K. Claffy