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arXiv · 1308.3119

Multipath TCP: Analysis, Design and Implementation

Qiuyu Peng·Anwar Walid·Jaehyun Hwang·Steven H. Low
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Abstract

Multi-path TCP (MP-TCP) has the potential to greatly improve application performance by using multiple paths transparently. We propose a fluid model for a large class of MP-TCP algorithms and identify design criteria that guarantee the existence, uniqueness, and stability of system equilibrium. We clarify how algorithm parameters impact TCP-friendliness, responsiveness, and window oscillation and demonstrate an inevitable tradeoff among these properties. We discuss the implications of these properties on the behavior of existing algorithms and motivate a new design that generalizes existing algorithms and strikes a good balance among TCP-friendliness, responsiveness, and window oscillation. We have implemented our algorithm in the Linux kernel. We use our prototype to compare the new algorithm with existing MP-TCP algorithms.

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Qiuyu Peng, Anwar Walid, Jaehyun Hwang, Steven H. Low. 2014-12-07. Multipath TCP: Analysis, Design and Implementation. https://doi.org/10.1109/tnet.2014.2379698

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