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计算机工程

• 移动互联与通信技术 • 上一篇    下一篇

基于分层PE技术的MPLS-VPN架构优化

宋高俊,胡成,周芳   

  1. (南昌航空大学 信息工程学院,南昌 330063)
  • 收稿日期:2016-05-09 出版日期:2017-06-15 发布日期:2017-06-15
  • 作者简介:宋高俊(1959—),男,副教授,主研方向为网络结构及优化、卫星通信技术;胡成、周芳,硕士研究生。
  • 基金资助:
    国家自然科学基金(61362013)。

MPLS-VPN Architecture Optimization Based on Hierarchical PE Technology

SONG Gaojun,HU Cheng,ZHOU Fang   

  1. (School of Information Engineering,Nanchang Hangkong University,Nanchang 330063,China)
  • Received:2016-05-09 Online:2017-06-15 Published:2017-06-15

摘要: 针对传统MPLS-VPN组网架构存在的扩展性不足、安全性不高与传输质量差等问题,提出一种使用层次化运营商边缘设备技术优化网络架构的方法。采用设备层级化的方式对网络拓扑结构进行优化改造,使设备的路由控制和数据转发实现最大限度的分离,引入链路利用率权值对等价多路径选择算法进行优化,并把优化前后网络的各项性能指标进行对比。实验结果表明,优化后流量的负载更均衡,数据包的延时、抖动、丢包率明显下降,网络的扩展性、安全性以及传输质量明显提高。

关键词: 路由, 数据转发, 标签转发, 多路径, 传输质量, 网络层次

Abstract: Considering that the traditional MPLS-VPN network architecture has problems like inadequate scalability,low security and poor transmission quality,a method using hierarchical Provider Edge(PE) technology to optimize network architecture is proposed.The method uses the hierarchical way to optimize the network topology and achieves the maximum separation of the routing control and data forwarding.The weight of the link utilization is introduced to optimize Equal-Cost Multipath(ECMP) selection algorithm and various performance indicators of the network are compared before and after the optimization.Experimental results show that this method can make the optimized traffic load more balanced and significantly reduce packet delay,jitter and packet loss rate,and it obviously improves network scalability,security and transmission quality.

Key words: routing, data forwarding, label forwarding, multipath, transmission quality, network level

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