• 中国计算机学会会刊
  • 中国科技核心期刊
  • 中文核心期刊

J4 ›› 2010, Vol. 32 ›› Issue (1): 5-7.doi: 10.3969/j.issn.1007130X.2010.

• 论文 • 上一篇    下一篇

基于源树的MPLS最小冲突路径多播算法

  

  1. (长沙理工大学计算机与通信工程学院,湖南 长沙 410114)
  • 收稿日期:2008-04-13 修回日期:2008-07-10 出版日期:2010-01-18 发布日期:2010-01-18
  • 通讯作者: 410114 湖南省长沙市长沙理工大学计算机与通信工程学院 E-mail:long.pf@163.com
  • 作者简介:龙鹏飞(1960),男,湖南祁东人,高级工程师,研究方向为计算机软件、面向对象技术和决策支持系统等;易见波,硕士生,研究方向为基于网络的计算机技术。
  • 基金资助:

    湖南省教育基金资助项目

A Least Interference Path Algorithm for MPLS Based on Source Trees

  1. (School of Computer and Communication Engineering,Changsha University of Science and Technology,Changsha 410114,China)
  • Received:2008-04-13 Revised:2008-07-10 Online:2010-01-18 Published:2010-01-18
  • Contact: School of Computer and Communication Engineering,Changsha University of Science and Technology,Changsha,Hunan 410114,P.R.China E-mail:long.pf@163.com

摘要:

维护多播信息需要额外的硬件开销,多播体系结构缺乏可扩展性,限制了多播业务的发展。本文在多播中应用MPLS最小冲突路径算法,在分支节点的MPLS中加入多播信息表,实现基于源树的多播树构建,从而解决了MPLS多播中数据转发的标签分配问题,具有良好的扩展性。实验表明,利用MPLS最小冲突路径算法,起到了节约带宽和提高多播性能的作用。

关键词: 多协议标签交换, 最小冲突, 多播, MPLS多播, 关键链路

Abstract:

Maintaining multicast information needs additional hardware overhead, and making the multicast architecture lacks scalability, thus limiting the development of multicast services. This paper applies a least interference path algorithm for MPLS in the multicast, adds multicast information table in the branch nodes MPLS, and implements the sourcetree multicast over MPLS, so  it is able to solve the difficulties of label distribution on data transmission in the MPLS multicast to achieve a good scalability. The simulation result demonstrates that the application of the least Interference path algorithm over MPLS saves bandwidth and improves multicast capability.

Key words: MPLS;least interference;multicast;MPLS multicast;critical link

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