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一种SDH over WDM自愈方案
引用本文:徐世中,李乐民,王晟.一种SDH over WDM自愈方案[J].电子科技大学学报(社会科学版),2000(4).
作者姓名:徐世中  李乐民  王晟
作者单位:电子科技大学宽带光纤传输与通信系统技术国家重点实验室!成都610054
基金项目:国家自然科学基金资助项目!基金号:69990504
摘    要:研究了 SDH/WTM多层传送网结构中的自愈问题,提出了一种用于 SDH over WDM的自愈方案。该方案采用了有保护的SDH层架构在无保护的WDM光层的体系结构,根据不同节点对间业务量的大小和恢复时间要求的不同,分别采用基于光路的1+1复用段保护和双光路双向复用段倒换环来提供传输和保护,满足了不同业务对自愈性能的需求,可实现快速有效的自愈。

关 键 词:自愈网  同步数字序列/波分复用  1+1复用段保护  双向复用段倒换环

A Survivable Solution for SDH over WDM Networks
Xu Shizhong,Li Lemin,Wang Sheng.A Survivable Solution for SDH over WDM Networks[J].Journal of University of Electronic Science and Technology of China(Social Sciences Edition),2000(4).
Authors:Xu Shizhong  Li Lemin  Wang Sheng
Abstract:A Survivable Solution for SDH over WDM networks is proposed in this paper The key issues associated with lightpath-based 1+1 multiplex section protecion (MSP) and 2 optical channel multiplex section/shared protection ring (2OCH MS/SPRing) are discussed. According to the requirements of transfer rate and recover time of the traffic between different node pairs, lightpath-based 1+1 MSP and 2OCH MS/SPRing are chosen to provide efficient transporting and protection functions. With protected SDH over unprotected WDM optical layer, all the traffic can be protected efficiently.
Keywords:survivable network  synchronous digital hierarchy over wawelength division multiplex  multiplex section protection  multiplex section protedtion ring
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