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arXiv 1601.05908cs.NI
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Agile-SD:一种基于Linux的支持高速短距离网络的TCP拥塞控制算法

Agile-SD: A Linux-based TCP Congestion Control Algorithm for Supporting High-speed and Short-distance Networks

Mohamed A. Alrshah, Mohamed Othman, Borhanuddin Ali, Zurina Mohd Hanapi

摘要:

近年来,高速和短距离网络被广泛部署,并且它们的必要性每天都在迅速增加。这种类型的网络用于多种网络应用,例如局域网(LAN)和数据中心网络(DCN)。在LAN和DCN中,通常部署高速和短距离网络来连接计算和存储元件以提供快速服务。实际上,这种网络的整体性能受到拥塞控制算法(CCA)的显著影响,该算法遭受带宽利用不足的问题,特别是在所应用的缓冲区机制非常小的情况下。在本文中,一种新的基于丢失的CCA定制的高速和短距离(SD)网络,即敏捷SD,已被提出。提出的CCA的主要贡献是实现了灵活性因素的机制。此外,已经进行了密集的模拟实验,以评估Agile-SD的性能相比,化合物和立方,这是最常用的操作系统的默认CCA。仿真实验结果表明,该CCA在平均吞吐量、丢包率和公平性等方面均优于同类CCA,尤其是在缓冲区较小的情况下。此外,Agile-SD显示出对缓冲区大小变化和分组出错率变化的较低敏感性,这提高了其效率。

英文摘要:

Recently, high-speed and short-distance networks are widely deployed and their necessity is rapidly increasing everyday. This type of networks is used in several network applications; such as Local Area Networks (LAN) and Data Center Networks (DCN). In LANs and DCNs, high-speed and short-distance networks are commonly deployed to connect between computing and storage elements in order to provide rapid services. Indeed, the overall performance of such networks is significantly influenced by the Congestion Control Algorithm (CCA) which suffers from the problem of bandwidth under-utilization, especially if the applied buffer regime is very small. In this paper, a novel loss-based CCA tailored for high-speed and Short-Distance (SD) networks, namely Agile-SD, has been proposed. The main contribution of the proposed CCA is to implement the mechanism of agility factor. Further, intensive simulation experiments have been carried out to evaluate the performance of Agile-SD compared to Compound and Cubic which are the default CCAs of the most commonly used operating systems. The results of the simulation experiments show that the proposed CCA outperforms the compared CCAs in terms of average throughput, loss ratio and fairness, especially when a small buffer is applied. Moreover, Agile-SD shows lower sensitivity to the buffer size change and packet error rate variation which increases its efficiency.

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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