网络与信息安全学报 ›› 2020, Vol. 6 ›› Issue (6): 97-104.doi: 10.11959/j.issn.2096-109x.2020066

• 学术论文 • 上一篇    下一篇

低故障恢复开销的软件定义网络控制器布局算法

吴奇(),陈鸿昶   

  1. 信息工程大学,河南 郑州 450001
  • 修回日期:2020-02-04 出版日期:2020-12-15 发布日期:2020-12-16
  • 作者简介:吴奇(1991- ),男,江苏徐州人,信息工程大学博士生,主要研究方向为网络安全|陈鸿昶(1964- ),男,河南郑州人,信息工程大学研究员、博士生导师,主要研究方向为网络安全、大数据
  • 基金资助:
    国家重点研发计划基金(2018YFB0804004)

Low failure recovery cost controller placement strategy in software defined networks

Qi WU(),Hongchang CHEN   

  1. Information Engineering University,Zhengzhou 450001,China
  • Revised:2020-02-04 Online:2020-12-15 Published:2020-12-16
  • Supported by:
    The National key Research and Development Program of China(2018YFB0804004)

摘要:

控制器部署技术是软件定义网络的重要研究方向。现有控制器布局技术更多地关注节点故障时网络的鲁棒性布局方法,缺乏对连边故障情况下的灾备分析。为了解决这个问题,建立了一种低故障恢复开销软件定义网络控制器布局模型,该模型针对连边故障进行设计,并利用基于模拟退火思想的算法进行求解。仿真结果表明,该模型及算法在尽量少地损失网络时延代价的同时,有效降低了控制路径出现故障时网络的故障恢复开销。

关键词: 软件定义网络, 控制器部署, 鲁棒性, 连边故障, 故障恢复开销

Abstract:

The controller placement is an important problem in software defined networks.Existing researches pay more attention to deploying controller planning for node failures and ignore the fact that the link failure can also effect the network drastically.To solve the problem,a mathematical model for the controller placement that plans ahead for the link failures to avoid a drastic increase failure recovery cost was proposed.To solve the model,an algorithm based on simulated annealing was designed.The simulation results show that the proposed model and algorithm can improve the robustness of the network.The maximum failure recovery cost is significantly reduced when a link falls in failures.

Key words: software defined network, controller placement, robustness, link failure, failure recovery cost

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