OTN保护方式及多重保护协同方案  

Discussion on OTN protection modes and multi protection cooperation schemes

作　　者：郭艳春 王晨 沈艳涛 刘建平 周洁娟 GUO Yan-chun;WANG Chen;SHEN Yan-tao;LIU Jian-ping;ZHOU Jie-juan(China Mobile Group Design Institute Co.,Ltd.,Beijing 100080,China;China Mobile Group Co.,Ltd.,Beijing 100033,China)

机构地区：[1]中国移动通信集团设计院有限公司,北京100080 [2]中国移动通信集团有限公司,北京100033

出　　处：《电信工程技术与标准化》2022年第5期70-74,共5页Telecom Engineering Technics and Standardization

摘　　要：目前OTN是业务承载的主要方式,为提高网络的安全性,网络中采用OLP/OMSP、ODUkSNCP1+1、OCP1+1等多种保护措施。同时,业务层自身也有保护,多重保护嵌套后,如何实现各种保护的协调,保证故障时不会出现多保护同时倒换,避免倒换震荡和业务闪断是需要在网络开通时需要关注的问题。本文通过分析不同保护方式倒换原理,对不同场景下多种保护嵌套时的保护协同问题进行分析,提出了保护协同方式和解决方案。OTN is the popular way of service carrying. In order to improve the network security, OLP/OMSP、SNCP 1+1 or OCP 1+1 of ODUk are used. Meanwhile, the service itself also has protection. Thereafter, how to realize the coordination of various protection with nested multiple protection is an important factor that needs attention when opening a network. This is to ensure that multiple protections will not be switched at the same time in case of failure, so as to avoid switching oscillation and service fl ashover. By analyzing the switching principle of different protection modes, this thesis analyzes the protection cooperation problems of multiple protection nesting in different scenarios, and puts forward the protection cooperation modes and solutions.

关 键 词：OLP/OMSP 1+1子网连接保护 1+1光通道保护 

分 类 号：TN913[电子电信—通信与信息系统]