下一代光接入网络上安全的多虚拟专网构建机制.pdfVIP

网络出版时间：2013-11-05 11:26 网络出版地址：/kcms/detail/51.1196.TP1126.053.html 优先出版 计 算 机 应 用 研 究 第31 卷 下一代光接入网络上安全的多虚拟专网构建机制 1 2 1 李 燕 ，常相茂 ，马福民 （1．南京财经大学 信息工程学院,南京 2 10046；2． 南京航空航天大学 计算机科学与技术学院,南京 2 10002 ） 摘 要：简要介绍了下一代光接入网络上构建安全的虚拟专网存在的挑战以及网络编码的特性，重点研究基于网络编码 构建安全多虚拟专网的机制。依据本文提出的机制，多个安全的虚拟专网可以在无源光网络这一下一代光接入网络的主 要实现形式上独立的构建。最后分析了提出的虚拟专网机制对下行数据传输吞吐量的提高。 关键词：光接入网络; 无源光网络; 虚拟专网; 网络编码 中图分类号：TP309.2 文献标志码：A Construction scheme of multiple secure virtual private networks over next generation optical access networks 1 2 1 LI Yan , CHANG Xiang-mao , MA Fu-min (1. College of Information Engineering, Nanjing University of Finance Economics, Nanjing 210046, China; 2. College of Computer Science Technology, Nanjing University of Aeronautics Astronautics, Nanjing 210002, China) Abstract: This paper briefly described the challenges in secure virtual private network (VPN) construction over next generation optical networks and the characteristics of network coding, it focused on the construction scheme of multiple secure VPNs based on network coding. On the basis of the scheme proposed in the paper, multiple secure VPNs can be independently established over passive optical network (PON) which is the realistic deployment for next generation optical access networks. Finally, it analyzes the downlink throughput gain introduced by the proposed scheme. Key Words: optical access network; passive o