Shrinking MTU to Improve Fairness Among TCP Flows in Data Center Networks

摘要：

TCP is widely used in the communications between servers in data centers. However, TCP has scaling limit that its ability to provide fair sharing at bottleneck link is reduced as the number of competing flows increases. Such limit is common in current data center networks and causes unfairness among TCP flows on a small time scale. The unfairness would add unpredictable delay to short flows, which would affect the user experiences of soft real-time applications. In this paper, we propose a simple and cost-effective method - shrinking MTU - to improve the fairness among TCP flows. Through model analysis and extensive simulations, the fairness on a small time scale is improved and the completion time of short flows is reduced by decreasing MTU size.

关键词： DCN (Data Center Networks) MTU TCP fairness

作者: Peng Zhang Hongbo Wang Shiduan Cheng

作者单位: State Key Laboratory of Networking and Switching Technology Beijing University of Posts & Telecommunications, Beijing, 100876, China

会议类型: 国际会议

会议名称: 2011 IEEE 3rd International Conference on Communication Software and Networks(2011第三届通信软件与网络国际会议 ICCSN2011)

会议地点: 西安

会议语种:英文

页码: 106-111

在线出版日期: 2011-05-27（万方平台首次上网日期，不代表论文的发表时间）