通信学报 ›› 2014, Vol. 35 ›› Issue (12): 62-69.doi: 10.3969/j.issn.1000-436x.2014.12.008

• 学术论文 • 上一篇    下一篇

分布式环境中基于协商的虚拟网映射算法

江逸茗1,兰巨龙1,程东年1,吴方明2   

  1. 1 国家数字交换系统工程技术研究中心,河南 郑州 450002
    2 吉林大学 计算机科学与技术学院,吉林 长春 130022
  • 出版日期:2014-12-25 发布日期:2017-06-17
  • 基金资助:
    国家重点基础研究发展计划(“973计划)基金资助项目;国家重点基础研究发展计划(“973计划)基金资助项目;国家自然科学基金资助项目;国家自然科学基金资助项目;国家高技术研究发展计划(“863计划)基金资助项目;国家高技术研究发展计划(“863计划)基金资助项目;国家高技术研究发展计划(“863计划)基金资助项目

Virtual network embedding algorithm based on negotiation in distributed environment

Yi-ming JIANG1,Ju-long LAN1,Dong-nian CHENG1,Fang-ming WU2   

  1. 1 National Digital Switching System Engineering and Technological Research Center,Zhengzhou 450002,China
    2 College of Computer Science and Technology,Jilin University,Changchun 130022,China
  • Online:2014-12-25 Published:2017-06-17
  • Supported by:
    The National Basic Research Program of China (973 Program);The National Basic Research Program of China (973 Program);The National Natural Science Foundation of China;The National Natural Science Foundation of China;The National High Technology Research and Development Program of China (863 Program);The National High Technology Research and Development Program of China (863 Program);The National High Technology Research and Development Program of China (863 Program)

摘要:

网络虚拟化技术可以在共享的底层物理网络上为用户同时提供多种可定制的服务网络。目前的虚拟网映射算法比较依赖于集中式的管理节点,使其在可靠性和适用范围等方面存在诸多问题。为此,提出了一种分布式环境下的虚拟网映射算法,该算法通过多个节点之间的相互协商来完成虚拟网的映射,并且在降低通信开销和缩短虚拟链路的路径长度方面进行了相应改进。实验结果表明,该算法与同类型算法相比,在资源利用率和通信开销方面具有一定的优越性。

关键词: 虚拟网, 分布式映射算法, 映射协议, 通信开销

Abstract:

The network virtualization is able to offer various customized end-to-end services networks on a shared sub-strate network.However,the existing virtual network embedding algorithms present many problems in reliability and ap-plicability due to their dependence on a centralized manager node.Hence,a virtual network embedding algorithm in dis-tributed environment is proposed,which implements embedding process by the negotiation of several nodes.Moreover,this algorithm makes improvement in reducing communication cost and length of virtual links.Simulation experiments demonstrate that the proposed algorithm can achieve better performance on efficiency of resources utilization and com-munication cost.

Key words: virtual network, distributed embedding algorithm, embedding protocol, communication cost