电子学报 ›› 2002, Vol. 30 ›› Issue (7): 1072-1074.

• 论文 • 上一篇    下一篇

网状波分复用网络的保护倒换时间分析

王志文, 夏 秦, 李增智, 李平均   

  1. 西安交通大学计算机系统结构与网络研究所,陕西西安 710049
  • 收稿日期:2001-04-27 修回日期:2001-09-14 出版日期:2002-07-25 发布日期:2002-07-25

A Study of Protection Switching Time for Mesh WDM Network

WANG Zhi-wen, Xia Qin, LI Zeng-zhi, LI Ping-jun   

  1. The Institute of Computer Architecture and Network of Xi'an JiaoTong University,Xi'an,Shaanxi 710049,China
  • Received:2001-04-27 Revised:2001-09-14 Online:2002-07-25 Published:2002-07-25

摘要: 保护倒换时间是评估网状波分复用网络保护方法性能的一项重要指标,本文就专门路径保护、共享路径保护以及共享链路保护三种保护方法,分别建立了各自对应的保护倒换时间计算模型,然后分析了影响保护倒换时间的主要因素,并在此基础上提出了相应的优化策略和解决方案,本文结果对于正确选择保护方法具有一定的参考价值.

关键词: 波分复用, 网状网络, 生存性, 网络保护和恢复, 保护倒换时间

Abstract: Protection Switching Time (PST) is an important metric on evaluating the performances of protection methods in mesh WDM network.This paper provides three types of arithmetic model of PST for dedicated-path protection,shared-path protection and shared-link protection separately.And then some optimal strategies and available solutions are provided on the base of analyzing several principal issues affecting PST.Result of this paper has some reference value for correctly choosing protection method.

Key words: wavelength division multiplexing, mesh network, survivability, network protection and restoration, protection switching time

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