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arXiv 1601.06043cs.NI
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传输层多径的过去、现在和未来

The Past, Present, and Future of Transport-Layer Multipath

Sana Habib, Junaid Qadir, Anwaar Ali, Durdana Habib, Ming Li, Arjuna Sathiaseelan

摘要:

通信网络中的多路径由于其增加的可靠性、吞吐量、容错和负载均衡能力的吸引人的特征而获得动力。特别地,无线环境和网络中心被设想为在很大程度上依赖于多路径的能力来实现无缝切换、虚拟机(VM)迁移,并且通常将不太熟练的资源汇集在一起以实现整体的高熟练度。传输层具有端到端路径特性的知识,可以通过更好地利用多个路径来提高性能。实现传输层多路径的重要性,本文研究了传统的连接建立,流量控制,序列号分裂,确认和流量调度机制的现代化,用于多路径。由于拥塞控制定义了传输层的一个基本特征,我们研究了多径速率控制的工作原理,并分析了其稳定性和收敛性。我们还讨论了如何不同的多路径拥塞控制算法在他们的窗口增加和减少功能,他们的TCP友好性,和响应。据我们所知,这是第一篇深入调查论文,记录了互联网传输层从传统的单路径TCP到现代多路径TCP(MPTCP)协议的最新发展。除了描述这一演变的历史,我们还强调了在本文中仍然存在的挑战和研究问题。

英文摘要:

Multipathing in communication networks is gaining momentum due to its attractive features of increased reliability, throughput, fault tolerance, and load balancing capabilities. In particular, wireless environments and datacenters are envisioned to become largely dependent on the power of multipathing for seamless handovers, virtual machine (VM) migration and in general, pooling less proficient resources together for achieving overall high proficiency. The transport layer, with its knowledge about end-to-end path characteristics, is well placed to enhance performance through better utilization of multiple paths. Realizing the importance of transport-layer multipath, this paper investigates the modernization of traditional connection establishment, flow control, sequence number splitting, acknowledgement, and flow scheduling mechanisms for use with multiple paths. Since congestion control defines a fundamental feature of the transport layer, we study the working of multipath rate control and analyze its stability and convergence. We also discuss how various multipath congestion control algorithms differ in their window increase and decrease functions, their TCP-friendliness, and responsiveness. To the best of our knowledge, this is the first in-depth survey paper that has chronicled the evolution of the transport layer of the Internet from the traditional single-path TCP to the recent development of the modern multipath TCP (MPTCP) protocol. Along with describing the history of this evolution, we also highlight in this paper the remaining challenges and research issues.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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