An Early Look at Multipath TCP Deployment in the Wild
An Early Look at Multipath TCP Deployment in the Wild
复制标题
多路径 TCP 实际部署的早期观察
DOI：
10.1145/2798087.2798088
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发表时间：
2015
期刊：
影响因子：
--
通讯作者：
R. Boreli
中科院分区：
文献类型：
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作者：
O. Mehani;Ralph Holz;Simone Ferlin Oliveira;R. Boreli
多路径TCP于2013年在IETF上实现了标准化。它承诺更好地利用多宿主设备的网络资源，以实现容量聚合或无缝故障转移功能。然而，人们对此的理解相当缓慢。一些操作系统开箱即可支持MPTCP，但对其在服务器端的部署知之甚少。我们构建了一个扫描基础设施来搜索互联网上支持MPTCP的主机。在这项研究中，我们使用了排名前100万的Alexa服务器来测试该平台，并深入了解服务器支持。我们发现，目前只有不到0.1%的Alexa唯一域和IP地址支持MPTCP。他们的地理分布与其他研究中报告的客户非常不同，大多数域名位于中国。我们还发现，实际公开多宿主信息的IP非常少，这表明这些早期部署的目标是提供可靠性，而不是容量聚合。我们还确定了一些部署问题。
Multipath TCP was standardised in 2013 at IETF. It promises better use of network resources of multi-homed devices for capacity aggregation or seamless fail-over capabilities. The uptake has however been rather slow. Some operating systems support MPTCP out of the box, but little is known about their deployment on the server side. We built a scanning infrastructure to search for MPTCP-capable hosts on the Internet. In this study, we used the top-1M Alexa servers to test the platform and gain insight about server support. We find that less than 0.1% of Alexa unique domains and IP addresses currently support MPTCP. Their geographic distribution is quite different from that of clients reported in other studies, with the majority of domains being in China. We also find that very few IPs actually expose multi-homing information, suggesting that these early deployments aim at providing reliability rather than capacity aggregation. We also identify some deployment issues.