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一种基于ITU-T G.8032的多级保护倒换机制
Authors
崔素娟
汪怀坤
程友清
Publication date
1 January 2012
Publisher
《光通信研究》编辑部
Doi
Cite
Abstract
ITU-T G.8032协议只定义了以太环网中一级链路故障情况下的保护方案,对于多级链路故障,缺乏具体的解决方案。文章阐述了ITU-T G.8032中单环和多环的工作原理,分析了多环中存在的问题及缺陷,在此基础上提出了一种针对多环的多级保护倒换机制。该机制利用多环中虚链路的概念,通过对虚链路故障检测以及虚链路保护进行研究,实现了对以太环网中多级链路故障的保护。测试结果表明,多级保护倒换的时间在50ms以内,满足电信级以太网的网络自愈时间要求,提高了以太网的可靠性
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Last time updated on 26/01/2023