| 具有多重故障恢复能力的光网络生存性机制 |
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| 引用本文： | 曲桦,李增智.具有多重故障恢复能力的光网络生存性机制[J].北京邮电大学学报,2006,29(Z1):39-42. |
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| 作者姓名： | 曲桦 李增智 |
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| 作者单位： | 西安交通大学电信学院 西安 710061 |
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| 基金项目： | 国家自然科学基金项目(6047207560572134)，国家“863计划”项目(2005AA121540) |
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| 摘 要： | 为了解决多重故障情况下网络发生故障后能尽快地恢复 受影响的业务这一问题，提出了一种具有多重故障恢复能力的光网络生存性机制. 针对传 统子网路由法存在的问题，给出了相应的改进方案：在子网路由法中考虑了对共享分享链路 组的恢复问题；在子网路由法中引入了选路原则. 在采用子网路由法的基础上探讨了二次故 障的生存性方法，并从有效利用率的角度对所给出的改进方案进行了仿真和分析.
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| 关 键 词： | 生存性 故障恢复 光网络 子网路由法 共享风险链路组 |
| 收稿时间： | 2006-01-05 |
A Multi-Fault Recovery Survivability Mechanism for Optical Networks |
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| QU Hua,LI Zeng-zhi.A Multi-Fault Recovery Survivability Mechanism for Optical Networks[J].Journal of Beijing University of Posts and Telecommunications,2006,29(Z1):39-42. |
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| Authors: | QU Hua LI Zeng-zhi |
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| Affiliation: | Xi’an Jiaotong University， 710061 Xi’an China |
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| Abstract: | From the viewpoint of user and operator,optical networks are in dire need of fault tolerations,especially recovery from multi-fault.A multi-fault recovery survivability mechanism for optical networks was presented.The corresponding improvement solutions for the problem in classical subgraphy routing method from three aspects was provided and analyzed respectively: the shared risk link groups(SRLG) restoration into the subgraph routing method;a routing principle into the subgraph routing method;the second fault restoration method based on the subgraph routing.Simulation results are showed from the point of view of effective utilization. |
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| Keywords: | survivability fault recovery optical networks subgraph routing shared risk link group |
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