OTN承载的数据网业务闪断问题分析  

Analysis of Flash Fault of Data Network Services over OTN

作　　者：裴俊芳 Pei Junfang

机构地区：[1]中国铁路广州局集团有限公司长沙电务段

出　　处：《铁道通信信号》2021年第12期53-56,共4页Railway Signalling & Communication

摘　　要：OTN网络由于具备大带宽承载的经济性,同时又能支持小颗粒业务灵活调度,现已成为铁路数通设备互联电路的主要承载系统。通过对OTN承载的数据网业务闪断问题的分析,进一步阐述OLP、SNCP保护倒换的原理,以及倒换过程对承载的数据网业务的影响,并提出解决方案。OTN network has become the main carrier system of the interconnected circuit of railway digital communication equipment because of its economy of large bandwidth carrying and its ability to support the flexible scheduling of small bandwidth services.Through analyzing flash fault of data network services over OTN,the principle of OLP and SNCP protection switching and the influence of the switching process on the data network services over OTN are further expounded and the solution is also given.

关 键 词：数据网 光传送网 光线路保护 子网连接保护 倒换 保护 时延 

分 类 号：U285.4[交通运输工程—交通信息工程及控制]