信息通信技术与政策

信息通信技术与政策

信息通信技术与政策 ›› 2022, Vol. 48 ›› Issue (4): 61-65.doi: 10.12267/j.issn.2096-5931.2022.04.011

技术与标准 上一篇    下一篇

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

王晨1, 郭艳春2   

  1. 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
  • 收稿日期:2021-12-10 出版日期:2022-04-15 发布日期:2022-05-09
  • 作者简介:
    王晨: 中国移动通信集团有限公司高级工程师,主要从事SPN/OTN/PON等省际、省内、城域网工程咨询、设计、项目管理等方面的工作;|郭艳春: 中国移动通信集团设计院有限公司教授级高级工程师,主要从事干线传送网规划、设计、OTN工程应用等方面的工作

WANG Chen1, GUO Yanchun2   

  1. 1. China Mobile Group Co., Ltd., Beijing 100033, China
    2. China Mobile Group Design Institute Co., Ltd., Beijing 100080, China
  • Received:2021-12-10 Online:2022-04-15 Published:2022-05-09

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。

关键词: OTN, ODUk SNCP 1+1保护, 1+1光通道保护, IrDI接口

Abstract:

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.

Key words: OTN, ODUk SNCP 1+1 protection, 1+1 optical channel protection, IrDI interface

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