| 一种基于SRLG限制的动态共享通道保护算法 |
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| 引用本文： | 杨桂荣,张沛,黄善国,张杰,顾畹仪.一种基于SRLG限制的动态共享通道保护算法[J].光通信研究,2007,33(4):1-4. |
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| 作者姓名： | 杨桂荣 张沛 黄善国 张杰 顾畹仪 |
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| 作者单位： | 北京邮电大学,光通信与光波技术教育部重点实验室,北京,100876 |
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| 基金项目： | 教育部跨世纪优秀人才培养计划
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国家高技术研究发展计划(863计划) |
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| 摘 要： | 光网络中引入了共享风险链路组(SRLG)的概念,要求工作通道与保护通道不能处于同一个SRLG之中.文章提出了一种基于SRLG限制的动态共享通道保护算法--动态链路权重配置(Dynamic Link Weight Configuration,DLWC)算法,该算法的关键在于为链路定义了两个动态权重.在计算工作通道和保护通道时,它能综合解决SRLG限制、动态负载均衡和自陷等3个关键问题.
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| 关 键 词： | 共享风险链路组 共享通道保护 负载均衡 自陷 WDM网状网 |
| 文章编号： | 1005-8788（2007）04-0001-04 |
| 收稿时间： | 2006/12/8 |
| 修稿时间： | 2006-12-08 |
A SRLG-based dynamic shared-path protection algorithm |
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| Yang Guirong,Zhang Pei,Huang Shanguo,Zhang Jie,Gu Wanyi.A SRLG-based dynamic shared-path protection algorithm[J].Study on Optical Communications,2007,33(4):1-4. |
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| Authors: | Yang Guirong Zhang Pei Huang Shanguo Zhang Jie Gu Wanyi |
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| Affiliation: | Key Laboratory of Optical Communication and Lightwave Technologies, Ministry of Education, Beijing University of Posts and Telecommunications, Beijing 100876,China |
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| Abstract: | The concept of Shared Risk Link Group(SRLG) is introduced in optical networks,in which the work path and the protection path should be SRLG-disjoint.A novel dynamic shared-path protection algorithm called Dynamic Link Weight Configuration(DLWC) algorithm based on SRLG constraints is proposed.The key to this algorithm is the definition of two dynamic weights of a link,which can be used to synthetically cope with three essential problems,i.e.SRLG constraints,dynamic loading balance and trap in calculating the work path and the protection path. |
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| Keywords: | SRLG shared-path protection loading balance trap WDM mesh network |
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