电子学报 ›› 2021, Vol. 49 ›› Issue (5): 964-974.DOI: 10.12263/DZXB.20190989

• 学术论文 • 上一篇    下一篇

SDN中基于全局拓扑感知的自适应流量均衡算法

王莅晟1, 伊鹏1, 胡涛1, 江逸茗1, 胡静萍1, 胡宗魁2   

  1. 1. 中国人民解放军战略支援部队信息工程大学信息技术研究所, 河南郑州 450002;
    2. 中国人民解放军第91445部队, 辽宁大连 116043
  • 收稿日期:2019-08-28 修回日期:2020-08-19 出版日期:2021-05-25
    • 通讯作者:
    • 胡涛
    • 作者简介:
    • 王莅晟 男,1995年生,甘肃人.中国人民解放军战略支援部队信息工程大学研究生,研究方向为新型网络体系结构;伊鹏 男,1977年11月生.博士,研究员,博士生导师,国家数字交换系统工程技术研究中心宽带网络研发部部长,河南省网络空间拟态防御重点实验室主任,长期从事新型网络体系结构、网络安全管控和主动防御技术研究.
    • 基金资助:
    • 国家重点研发计划"基于自适应网络平台的动态防御技术" (No.2018YFB0804002); 国家自然科学基金 (No.62002382)

Adaptive Flow Balancing Algorithm Based on Global Topology Awareness in SDN

WANG Li-sheng1, YI Peng1, HU Tao1, JIANG Yi-ming1, HU Jing-ping1, HU Zong-kui2   

  1. 1. Institute of Information Technology, PLA Strategic Support Force Information Engineering University, Zhengzhou, Henan 450002, China;
    2. Unit 91445 of PLA, Dalian, Liaoning 116043, China
  • Received:2019-08-28 Revised:2020-08-19 Online:2021-05-25 Published:2021-05-25
    • Corresponding author:
    • HU Tao
    • Supported by:
    • National Key Research and Development Program of China Dynamic Network Defense Technology Based on Adaptive Network Platform (No.2018YFB0804002); National Natural Science Foundation of China (No.62002382)

摘要: 针对软件定义网络(Software-Defined Networking,SDN)中控制平面和数据平面之间的控制链路性能受限导致的Packet_In传输瓶颈问题,提出了一种自适应的流量均衡算法,利用SDN网络控制平面拥有全局拓扑和交换机实时状态的特点,运用阈值对流量均衡起止条件进行控制,通过将超载交换机中流量重定向到邻居交换机的一跳转发的自适应方法,解决上行控制链路瓶颈问题.与现有方法相比,减小了33%的上行控制链路负载与50%的Packet-In消息丢包率,且部署开销小.

关键词: 软件定义网络, 控制链路, 全局拓扑, 流量优化, 自适应

Abstract: An adaptive flow balancing algorithm is proposed for the Packet_In transmission bottleneck caused by the limited control link performance between the control plane and the data plane in software-defined networking (SDN). The control plane of the SDN network has the characteristics of having a global topology and real-time status of switches, therefore we solve the bottleneck problem of the uplink control link by using thresholds to control the starting and ending conditions of flow balancing and redirecting flow in overloaded switch to neighbor switch. Compared with the existing methods, the upload control link load is reduced by 33% and packet loss rate of Packet-In massage is reduced by 50%, and the deployment overhead is little.

Key words: software defined network, control link, global topology, flow optimization, adaptive

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