首页 | 本学科首页   官方微博 | 高级检索  
     

基于SDN数据中心网络的时限感知的拥塞控制算法
引用本文:朱丹红,林清祥,张 栋. 基于SDN数据中心网络的时限感知的拥塞控制算法[J]. 计算机工程与应用, 2018, 54(3): 68-73. DOI: 10.3778/j.issn.1002-8331.1608-0181
作者姓名:朱丹红  林清祥  张 栋
作者单位:福州大学 数学与计算机科学学院,福州 350108
摘    要:当前SDN的数据中心发展迅速,针对数据中心网络存在的长短流竞争和TCP Incast引起的短流高延迟问题,提出SDN-D2TCP方案。该方案借助SDN的集中控制优势,利用控制器侦测多对一的网络流通信行为,预测交换机的TCP Incast发生瓶颈,并考虑时延敏感流的特性要求,结合D2TCP的时限感知和显式拥塞通知机制,调整拥塞窗口,增强短流竞争力。通过NS2实验仿真,相较于DCTCP与D2TCP,SDN-D2TCP能够有效降低TCP Incast的发生概率,保证短流低延时。

关 键 词:软件定义网络  数据中心网络  时限感知  拥塞控制  TCPIncast  

Deadline-aware of congestion control algorithm based on SDN data center network
ZHU Danhong,LIN Qingxiang,ZHANG Dong. Deadline-aware of congestion control algorithm based on SDN data center network[J]. Computer Engineering and Applications, 2018, 54(3): 68-73. DOI: 10.3778/j.issn.1002-8331.1608-0181
Authors:ZHU Danhong  LIN Qingxiang  ZHANG Dong
Affiliation:School of Mathematics and Computer Science, Fuzhou University, Fuzhou 350108, China
Abstract:With the development of Software Defined Networking(SDN) data center, the problem about high latency of short flows is brought by competitions of long flows and short flows as well as TCP Incast. This paper proposes the SDN-D2TCP scheme to solve this problem. The scheme uses the advantages of SDN centralized control and detects many-to-one communication by controller, then predicts bottlenecks of switches caused by TCP Incast. Considering the requirements of latency-sensitive flows, the scheme combines the deadline-aware of D2TCP and the explicit congestion notification mechanism to modulate the congestion windows and improve the competitive power of short flows. The NS2 simulation experiments indicate that, compared with DCTCP and D2TCP, SDN-D2TCP can reduce the occurrence of TCP Incast effectively and ensure low latency for short flows.
Keywords:software defined networking  data center network  deadline-aware  congestion control  TCP Incast  
点击此处可从《计算机工程与应用》浏览原始摘要信息
点击此处可从《计算机工程与应用》下载免费的PDF全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号