Journal of Computer Applications ›› 2016, Vol. 36 ›› Issue (4): 883-888.DOI: 10.11772/j.issn.1001-9081.2016.04.0883

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Load-aware optimal placement for heterogeneous controllers in software-defined networking based on unbalanced graph partitioning

WANG Yefu1,2, ZENG Guosun1, DING Chunling3   

  1. 1. Department of Computer Science and Technology, Tongji University, Shanghai 200092, China;
    2. State Key Laboratory of High-end Server & Storage Technology(INSPUR Company Limited), Jinan Shandong 250101, China;
    3. Department of Chemistry, Tongji University, Shanghai 200092, China
  • Received:2015-10-02 Revised:2015-11-27 Online:2016-04-10 Published:2016-04-08
  • Supported by:
    This work is partially supported by the National Natural Science Foundation of China (61272107, 61202173, 61103068), the Open Foundation of the State Key Laboratory of High-end Server and Storage Technology (2014HSSA10), the Program of Shanghai Subject Chief Scientist (10XD1404400), the Huawei Innovation Research Project (IRP-2013-12-03).

基于图非均衡划分的软件定义网络异构控制器负载优化部署

王也夫1,2, 曾国荪1, 丁春玲3   

  1. 1. 同济大学 计算机科学及技术系, 上海 200092;
    2. 高效能服务器和存储技术国家重点实验室(浪潮集团有限公司), 济南 250101;
    3. 同济大学 化学系, 上海 200092
  • 通讯作者: 王也夫
  • 作者简介:王也夫(1991-),男,安徽安庆人,硕士研究生,主要研究方向:软件定义网络、SDN控制器管理模型; 曾国荪(1964-),男,江西吉安人,教授,博士,博士生导师,主要研究方向:并行计算、可信软件、信息安全; 丁春玲(1965-),女,江西宜春人,高级工程师,硕士,主要研究方向:建模分析。
  • 基金资助:
    国家自然科学基金资助项目(61272107, 61202173, 61103068);高效能服务器和存储技术国家重点实验室开放基金资助项目(2014HSSA10);上海市优秀学科带头人计划项目(10XD1404400);华为创新研究计划项目(IRP-2013-12-03)。

Abstract: In wide-area Software Defined Networking (SDN) deployments, logically centralized controllers are usually physically placed in a distributed manner. To address the unbalanced controller load problem in controller placement, a load-aware optimal placement for heterogeneous controllers based on unbalanced graph partitioning was proposed. First, the controller placement problem and related metrics, controller load balance and latency, were analyzed. Secondly, controller load balance and latency caused by controller placement were quantified and computed using graph theory and cosine similarity. Moreover, based on graph partitioning theory, the load-aware controller placement problem was transformed into a specified graph partitioning problem. Finally, a load-aware optimal controller placement scheme was presented based on multi-level graph partitioning. Simulation experiments conducted on real network topologies indicate that the proposed scheme can effectively achieve nearly optimal controller load balance.

Key words: Software-Defined Networking (SDN), controller, optimal placement, graph partitioning, load balance

摘要: 大规模软件定义网络(SDN)往往需要逻辑上集中的控制器在物理上分布式部署。针对控制器部署中控制器负载不均衡的问题,提出一种基于图非均衡划分的SDN异构控制器负载优化部署方法。首先,分析控制器部署要求以及部署带来的控制器负载均衡和时延问题;其次,利用图论和余弦相似度,量化描述和计算异构控制器情况下的控制器负载均衡和时延,并运用图划分理论将控制器负载优化部署问题转化为一个具体的图划分问题;最后,基于多级划分的图划分思想,提出控制器负载优化部署方法。对实际网络拓扑的模拟实验结果表明,提出的部署方法可以有效实现接近最优的控制器负载分布。

关键词: 软件定义网络, 控制器, 优化部署, 图划分, 负载均衡

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