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A memory-based approach for a TCP-friendly traffic conditioner in DiffServ networks

机译：Diffserv网络中的基于内存的TCP友好交通调节器的方法

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Markers, one of the building blocks of a traffic conditioner play a major role for resource allocation in a DiffServ network. Recently, there has been a considerable research interest in designing intelligent markers, tailored for TCP traffic. The TCP dynamics make the design of a marker difficult in many respects. We list out the issues related to designing a TCP-friendly marker and propose an intelligent marker, namely, Memory-Based Marker (MBM) to address those issues. We illustrate the benefits of the proposed marker over some existing markers in a DiffServ network. The marker was implemented in NS simulator and extensive simulations were done to study the behaviour of MBM. Our results show significant improvement in TCP performance, especially in achieving fairness among priority flows with distinct round trip times, windows, and target rates. The marker is capable of protecting TCP flows in cases of congestion caused by the unruly UDP flows. We also investigate the impact of coexisting assured service UDP flows on the assurance to the TCP flows. The major benefits of MBM are its simplicity, least sensitivity to parameters and transparency to the end hosts.
机译：标记，交通调节器的一个构建块之一在DiffServ网络中为资源分配发挥着重要作用。最近，针对设计TCP流量量身定制的设计智能标记是相当大的研究兴趣。 TCP动力学使得在许多方面的设计难以设计。我们列出了与设计TCP友好标记相关的问题，并提出智能标记，即基于内存的标记（MBM）来解决这些问题。我们在DiffServ网络中说明了所提出的标记对一些现有标记的好处。标记在NS模拟器中实施，并进行了广泛的模拟，以研究MBM的行为。我们的结果表明，TCP性能显着提高，特别是在实现优先级流动的公平性，具有不同的往返时间，窗口和目标率。该标记能够在不守规矩的UDP流动引起的拥堵情况下保护TCP流动。我们还调查共存确保服务UDP流量对TCP流动的保证的影响。 MBM的主要好处是其简单性，对最终主机的参数和透明度的最小敏感性。

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