基于SDN的控制器迁移负载均衡算法研究  

Research on SDN based controller migration load balancing algorithm

作　　者：李娜 雷鸣[1] 闫克丁 徐沈博 Li Na;Lei Ming;Yan Keding;Xu Shenbo(School of Electronic Information Engineering,Xi~an University of Technology,Xi＇an 710021,China)

机构地区：[1]西安工业大学电子信息工程学院

出　　处：《国外电子测量技术》2018年第9期36-40,共5页Foreign Electronic Measurement Technology

摘　　要：SDN控制器与交换机之间的静态配置关系是导致控制平面负载不均衡的主要原因。针对这一问题,提出一种基于SDN架构的ODL控制器负载均衡算法CTLB,该算法综合考虑了控制器与交换机之间距离和传输时延及吞吐量,并建立评估模型,实现了动态地增删控制器数目并修改二者间配置关系,在减少交换机迁移次数的条件下均衡控制器负载。实验结果表明,该算法可有效均衡控制器之间的负载,增大吞吐量并降低网络响应延时,从而提髙了整个控制平面的稳定性。The static configuration relationship between the SDN controller and the switch is the main cause of the unbalance of the control plane load.To solve this problem.It proposes a ODL controller load balancing algorithm CTLB based on SDN architecture.The algorithm takes into account the distance between the controller and the switch,the transmission delay,the throughput,and establishes the evaluation model,which not only realizing the dynamic addition and deletion of the number of controllers but also modifying the configuration relationship,The experimental results show that the algorithm can effectively balance the load between the controller,increase throughput and reduce network response delay,thereby improving the stability of the plane control.

关 键 词：SDN 交换机集群 负载均衡 交换机迁移 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]