摘要
本文介绍了光传送网 (OTN)中光通路路由状态监测的概念、要求和意义 ;系统地介绍了目前发展起来的各种技术 ,包括间接监测法、局限于节点内部的标记加载 /监测 /去除法、全网范围的标记加载 /监测法 ;给出了各方法的典型例子 ,比较了各自的优缺点 ;最后 。
In this paper,we introduce several light path monitoring techniques in automatic switched optical networks(ASONs),including indirectly monitoring method,node-internal identification tag method and global unique identification method,such as pilot tone.The principles,the experimental results,the realizabilities,the advantages and disadvantages of these techniques are described and compared.The comparisons show that indirectly monitoring method is a practically adopted technique due to its simplicity;digital wrapper will be a preferred technique in industry in the near future for its advantage and realizability;other techniques are in laboratory research stage.
出处
《光电子．激光》
EI
CAS
CSCD
北大核心
2002年第5期542-546,共5页
Journal of Optoelectronics·Laser
基金
国家自然科学基金资助项目 ( 6 9990 5 40 -2 )
国家"86 3"资助项目 ( 2 0 0 1AA12 0 2 0 5 )
