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.
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.
作者
王莅晟
伊鹏
胡涛
江逸茗
胡静萍
胡宗魁
WANG Li-sheng;YI Peng;HU Tao;JIANG Yi-ming;HU Jing-ping;HU Zong-kui(Institute of Information Technology,PLA Strategic Support Force Information Engineering University,Zhengzhou,Henan 450002,China;Unit 91445 of PLA,Dalian,Liaoning 116043,China)
出处
《电子学报》
EI
CAS
CSCD
北大核心
2021年第5期964-974,共11页
Acta Electronica Sinica
基金
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)。
关键词
软件定义网络
控制链路
全局拓扑
流量优化
自适应
software defined network
control link
global topology
flow optimization
adaptive
