光传送网光通道保护应用分析及改进方案  

Analysis of OTN optical channel protection and recommendations

作　　者：王晨 郭艳春 WANG Chen;GUO Yanchun(China Mobile Group Co.,Ltd.,Beijing 100033,China;China Mobile Group Design Institute Co.,Ltd.,Beijing 100080,China)

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

出　　处：《信息通信技术与政策》2022年第4期61-65,共5页Information and Communications Technology and Policy

摘　　要：在光传送网中,当业务的主备用波道存在跨设备、跨厂家时,普遍采用1+1光通道保护,针对这种保护在现网应用时出现的问题,通过分析1+1光通道保护、ODUk SNCP 1+1保护的倒换机制,提出通过将跨设备、跨厂家的支路对接端口调整为OTUK/IrDI OTUK,从而将保护方式由1+1光通道保护改进为SNCP1+1保护,解决了跨厂家1+1光通道保护倒换时长、信号劣化不能触发1+1光通道保护、客户侧光通道保护盘引入的插损对客户信号的影响等问题。When work and protection channels of services facing cross equipments/manufacturers witnin OTN networks,1+1 optical channel protection is commenly used.Aiming at the problems in the application of this protection in the current network,by analyzing the switching mechanism of 1+1 optical channel protection and ODUk sncp1+1 protection,this paper proposes to improve the protection mode from 1+1 optical channel protection to SNCP1+1 protection by adjusting the branch interface of cross equipments/manufacturers to OTUK/IrDI OTUK,so as to solve the switching time of cross manufacturers 1+1 optical channel protection signal degradation cannot trigger 1+1 optical channel protection,and the impact of insertion loss introduced by OCP panel on customer side on customer signal.

关 键 词：OTN ODUk SNCP 1+1保护 1+1光通道保护 IrDI接口 

分 类 号：TN929.1[电子电信—通信与信息系统]