下一代光传送网的保护和恢复策略研究

Research on Protection and Restoration Strategy of Next Generation Optical Transport Network

随着网状网(Mesh)拓扑结构在下一代光传送网中的应用,基于Mesh的光传送网的生存性将成为研究热点。文章从光层生存性入手,首先分析Mesh生存性的主要特征,接着对Mesh网的保护与恢复策略进行归纳和总结,并介绍不同保护机制的应用特点,最后对Mesh网中的多层联合保护策略作了较为深入的探讨。

With the application of Mesh topology in the next generation optical transport network, the survivability of mesh-based optical transport network will become a hot research issue. This paper starts with the survivability of the optical layer, analyzes the main features of Mesh survivability, summarizes Mesh protection and restoration strategies and then introduces application features of different protection mechanisms. Finally, in-depth study of the strategy of multi-layer joint protection in the Mesh network is described.