多路径TCP调度器的实验评估

C. Paasch, Simone Ferlin Oliveira, Özgü Alay, O. Bonaventure
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引用次数: 289

摘要

如今,许多终端主机都配备了多个接口。这些接口可以被多路径协议同时利用,以有效的方式汇集链路资源,同时还提供对最终链路故障的弹性。然而,如何在多链路上调度数据段是一个具有挑战性的问题,它对多路径协议的性能有很大的影响。在本文中,我们重点讨论了多路径TCP的不同调度器。我们首先设计并实现了一个通用的模块化调度器框架,该框架支持对Multipath TCP的不同调度器进行测试。然后,我们通过在测试平台上运行模拟实验和实际实验,使用该框架对不同的调度器进行深入分析。我们考虑了批量数据传输以及应用程序有限的流量,并确定了量化调度器性能的指标。我们的研究结果揭示了调度决策如何有助于改进多路径传输。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Experimental evaluation of multipath TCP schedulers
Today many end hosts are equipped with multiple interfaces. These interfaces can be utilized simultaneously by multipath protocols to pool resources of the links in an efficient way while also providing resilience to eventual link failures. However how to schedule the data segments over multiple links is a challenging problem, and highly influences the performance of multipath protocols. In this paper, we focus on different schedulers for Multipath TCP. We first design and implement a generic modular scheduler framework that enables testing of different schedulers for Multipath TCP. We then use this framework to do an in-depth analysis of different schedulers by running emulated and real-world experiments on a testbed. We consider bulk data transfer as well as application limited traffic and identify metrics to quantify the scheduler's performance. Our results shed light on how scheduling decisions can help to improve multipath transfer.
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