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格状光网络双链路故障P圈保护算法

DOI: 10.13190/jbupt.200703.66.134, PP. 66-69

Keywords: MESH光网络,双链路故障,保护,P圈,有效跨接链路

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Abstract:

针对MESH光网络中两条链路同时发生故障的情形,分析了采用P_Cycle(P圈)为故障链路提供保护的方法,以及在至少3边连通度格状网络中采用P圈实现双链路故障保护的配置策略。提出了一种基于网络工作资源分布和P圈有效跨接链路配置P圈的双链路故障保护启发式算法。使用OPNET软件搭建的ASON仿真平台,采用泛欧COST239网络拓扑和静态业务模型对算法性能进行了仿真。仿真结果证明了该方案在拥有环网快速恢复能力的同时,相比已有算法具有更低的资源冗余度。

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