计算机应用研究2017，Vol.34Issue(7)：2134-2139,6.DOI:10.3969/j.issn.1001-3695.2017.07.047
基于节点可靠度的虚拟SDN映射算法
Virtual SDN embedding algorithm based on degree of node reliability
摘要
Abstract
In order to deal with network fault and increase the reliability of network,this paper designed degree of node reliability indicator in SDN environment and proposed a virtual SDN embedding algorithm based on degree of node reliability.Du-ring the initial reliable embedding stage,the algorithm embedded vSDN by degree of node reliability and deployed the controller considering the delay between controller and switches.Besides,it built backups for the control network in view of its importance.During the fault recovery stage,to solve the problem of single node or single link failure,the algorithm used the backup resources to deal with the invalidation of control nodes and used reembedding means to deal with other kinds of invalidation.Simulation experiments achieve better results of these performance parameters,including the acceptance ratio,the fault reco-very ratio,the valid loading ratio and the average controller-to-switch delay.关键词
软件定义网络/网络虚拟化/虚拟网络映射/控制器部署/节点可靠度Key words
software defined network/network virtualization/virtual network embedding/controller placement/degree of node reliability分类
信息技术与安全科学引用本文复制引用
赵思逸,陈靖,龚水清..基于节点可靠度的虚拟SDN映射算法[J].计算机应用研究,2017,34(7):2134-2139,6.基金项目
国家自然科学基金资助项目(61401499) （61401499）
陕西省自然科学基金资助项目(2015JM6340) （2015JM6340）
陕西省工业科技攻关项目(2016GY-087) （2016GY-087）
