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mPath: High-Bandwidth Data Transfers with Massively Multipath Source Routing

机译:mPath:具有大规模多路径源路由的高带宽数据传输

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摘要

The capacity of access links has increased dramatically in recent times, and bottlenecks are moving deeper into the Internet core. When bottlenecks occur in a core (or AS-AS peering) link, it is possible to use additional detour paths to improve the end-to-end throughput between a pair of source and destination nodes. We propose and evaluate a new massively multipath (mPath) source routing algorithm to improve end-to-end throughput for high-volume data transfers. We demonstrate that our algorithm is practical by implementing a system that employs a set of proxies to establish one-hop detour paths between the source and destination nodes. Our algorithm can fully utilize the available access link bandwidth when good proxied paths are available, without sacrificing TCP-friendliness, and achieves throughput comparable to TCP when such paths cannot be found. For 40 percent of our test cases on PlanetLab, mPath achieved significant improvements in throughput. Among these, 50 percent achieved a throughput of more than twice that of TCP.
机译:近年来,访问链接的容量已急剧增加,并且瓶颈正在越来越深地渗透到Internet核心中。当核心(或AS-AS对等)链路中出现瓶颈时,可以使用其他绕行路径来改善一对源节点和目标节点之间的端到端吞吐量。我们提出并评估了一种新的大规模多路径(mPath)源路由算法,以提高大容量数据传输的端到端吞吐量。我们通过实现一个使用一组代理在源节点和目标节点之间建立单跳绕行路径的系统来证明我们的算法是实用的。当有良好的代理路径可用时,我们的算法可以充分利用可用的访问链路带宽,而不会牺牲TCP友好性,并且在找不到此类路径时可以达到与TCP相当的吞吐量。对于PlanetLab上40%的测试用例,mPath的吞吐量得到了显着提高。其中,有50%的吞吐量是TCP的两倍以上。

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