电信科学 ›› 2021, Vol. 37 ›› Issue (4): 116-124.doi: 10.11959/j.issn.1000-0801.2021060

• 工程与应用 • 上一篇    下一篇

以OSU为核心的M-OTN技术创新与验证

荆瑞泉1, 霍晓莉1, 李俊杰2, 丁一1   

  1. 1 中国电信股份有限公司研究院,北京 102209
    2 中国电信集团有限公司,北京 100032
  • 修回日期:2021-04-03 出版日期:2021-04-20 发布日期:2021-04-01
  • 作者简介:荆瑞泉(1972- ),男,中国电信股份有限公司研究院教授级高级工程师,主要研究方向为光通信技术、传送网管控技术等
    霍晓莉(1977- ),女,中国电信股份有限公司研究院教授级高级工程师,主要研究方向为光通信技术、OTN等
    李俊杰(1977- ),男,中国电信集团有限公司光传输专业首席专家,中国电信集团有限公司科学技术委员会委员,主要研究方向为光通信技术、WDM等
    丁一(1995- ),女,中国电信股份有限公司研究院工程师,主要研究方向为光通信技术、传送网管控技术等

OSU based M-OTN technology innovation and verification

Ruiquan JING1, Xiaoli HUO1, Junjie LI2, Yi DING1   

  1. 1 Research Institute of China Telecom Co., Ltd., Beijing 102209, China
    2 China Telecom Group Co., Ltd., Beijing 100032, China
  • Revised:2021-04-03 Online:2021-04-20 Published:2021-04-01

摘要:

随着运营商停止对SDH/MSTP网络的投资,OTN将逐步替代SDH网络并向城域网的边缘延伸,从而对OTN技术提出了新的需求。针对城域光传送网发展面临的挑战和新的业务需求,提出了以OSU为核心、面向城域优化的M-OTN技术体系。对OSU技术的标准化进展情况进行了介绍,并重点对OSU技术标准的主要内容进行了概要介绍,包括OSU帧结构和开销、OSU管理帧、无损带宽调整机制等。给出了关于M-OTN设备形态和现网演进策略的考虑。对主流厂商的M-OTN样机进行了测试,测试结果表明OSU技术在时延、带宽调整和承载效率等方面具有显著的优势。

关键词: M-OTN, 光业务单元, 无损带宽调整

Abstract:

As many carriers are stopping SDH/MSTP investment, OTN networks will replace SDH networks gradually and extend to the edge of the metro network, thus introducing new requirements for OTN technologies.In view of the challenges and new services requirements of the development of the metro optical transport network, the M-OTN technology with the optical service unit (OSU) as the core and optimized for the metro application was proposed.The progress of standardization and main contents of OSU technical standards were introduced, including OSU frame structure and overheads, OSU management frames, OSU hitless bandwidth adjustment mechanism.The consideration on M-OTN equipment types and existing network evolution strategy was given.The M-OTN prototype systems from mainstream manufacturers were tested.Test results show that OSU technology has significant advantages in latency, hitless bandwidth adjustment and transport efficiency.

Key words: M-OTN, OSU, hitless bandwidth adjustment

中图分类号: 

No Suggested Reading articles found!