| 一种基于P圈的ASON混合故障保护模型 |
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| 引用本文： | 李彬,臧云华,邓宇,李桂仁,黄善国,顾畹仪. 一种基于P圈的ASON混合故障保护模型[J]. 高技术通讯, 2009, 19(2). DOI: 10.3772/j.issn.1002-0470.2009.02.003 |
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| 作者姓名： | 李彬 臧云华 邓宇 李桂仁 黄善国 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;中国台湾亚东技术学院通讯工程系,台北,22061 |
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| 基金项目： | 国家高技术研究发展计划(863计划)，国家自然科学基金，教育部留学归国人员教学科研经费建设和台湾科委会计划 |
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| 摘 要： | 在研究自动交换光网络(ASON)中发生节点/链路混合故障时的保护方法的基础上,设计了一种同时考虑节点故障和链路故障情况的基于P圈的保护模型,同时给出了一种保证在混合故障时可以达到100%业务恢复率的预配置P圈保护的启发式算法,并且综合考虑了实际网络中保护恢复速度和资源效率等因素,给出了具有最大P圈跳数限制的P圈配置方案.利用OPNET软件搭建了ASON仿真平台,在泛欧Cost239网络拓扑和北美NSFnet网络拓扑上,采用静态业务模型对该算法进行了仿真分析.仿真结果证明,该算法在拥有故障业务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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| 关 键 词： | P圈 混合故障 半跨接 自动交换光网络(ASON) |
A hybrid p-cycle protection model for node/span failures in ASON |
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| Li Bin,Zang Yunhua,Deng Yu,Lee KueiJen,Huang Shanguo,Gu Wanyi. A hybrid p-cycle protection model for node/span failures in ASON[J]. High Technology Letters, 2009, 19(2). DOI: 10.3772/j.issn.1002-0470.2009.02.003 |
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| Authors: | Li Bin Zang Yunhua Deng Yu Lee KueiJen Huang Shanguo Gu Wanyi |
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| Affiliation: | Li Bin,Zang Yunhua,Deng Yu,Lee Kuei-Jen~*,Huang Shanguo,Gu Wanyi Key Laboratory of Optical Communication and Lightwave Technologies,Ministry of Education,Beijing University of Post and Telecommunications,Beijing 100876 ~* Department of Communication Engineering,Oriental Institute of Technology,Taipei 22061,P.R.China |
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| Abstract: | On the basis of the research on recovery from node failures and link failures in automatically switched optical networks (ASON), a hybrid p-cycle protection model was designed. Furthermore, a heuristic p-cycle algorithm for absolutely recovering the network traffic during hybrid protection was proposed, and a p-cycle deployment solution under the limit of maximum p-cycle hop count for practical networks was given. The algorithm can provide full protection against single node failures, and takes single link ... |
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| Keywords: | p-cycle hybrid protection half-straddling automatically switched optical networks (ASON) |
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