东北大学学报:自然科学版 ›› 2017, Vol. 38 ›› Issue (3): 335-340.DOI: 10.12068/j.issn.1005-3026.2017.03.007

• 信息与控制 • 上一篇    下一篇

支持流量感知的软件定义网络高效路由方案

祝烈煌, 张琼宇, 沈蒙, 王明钟   

  1. (北京理工大学 计算机学院, 北京100081)
  • 收稿日期:2015-10-28 修回日期:2015-10-28 出版日期:2017-03-15 发布日期:2017-03-24
  • 通讯作者: 祝烈煌
  • 作者简介:祝烈煌(1976-),男,浙江衢州人,北京理工大学教授.
  • 基金资助:
    北京市自然科学基金资助项目(4164098); 国家自然科学基金资助项目(61602039,61272512,61300177).

Efficient Traffic-Aware Routing Scheme for Software Defined Networks

ZHU Lie-huang, ZHANG Qiong-yu, SHEN Meng, WANG Ming-zhong   

  1. School of Computer Science & Technology, Beijing Institute of Technology, Beijing 100081, China.
  • Received:2015-10-28 Revised:2015-10-28 Online:2017-03-15 Published:2017-03-24
  • Contact: SHEN Meng
  • About author:-
  • Supported by:
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摘要: 针对目前软件定义网络的实现方案中,路由策略所采取的最短路径模型无法保证网络信息交付延迟最小的问题,以信息交付延迟作为路由方案效率的衡量指标,提出了一种支持流量感知的高效路由方案.基于全网流量信息,本方案采用多元优化方案综合考虑转发路径的可用带宽、丢包率、延迟、交换机无效服务率以及路由长度,做出路由决策以提高路由效率.实验证明,与目前OpenFlow框架下采用的路由方案相比,本方案可以将数据交付效率提高90%.此外,本方案有利于维护网络负载均衡.

关键词: 软件定义网络, 路由, 流量优化, 路由模型, 传输延迟

Abstract: Routing decision in software defined networks (SDN), which was based on the shortest path model, was unable to guarantee to minimize the delivery delay in the routing path. An efficient traffic-aware routing scheme was proposed, in which the information delivery latency was taken as the measurement of the routing efficiency. Based on the network-wide traffic information, various traffic indicators were considered by this scheme, including available bandwidth, packet loss probability, delay, switches invalidity probability, and routing path length, to find out the optimal routing path to enhance the efficiency of data delivery in networks. Experiments show that the scheme outperforms current scheme applied in OpenFlow framework with up to 90% improvement on efficiency. What’s more, the scheme is helpful to maintain the load balance of the networks.

Key words: software defined networks(SDN), routing, traffic optimization, routing module, delivery delay

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