OSU based M-OTN technology innovation and verification

Ruiquan JING; Xiaoli HUO; Junjie LI; Yi DING

doi:10.11959/j.issn.1000-0801.2021060

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OSU based M-OTN technology innovation and verification

Engineering and Application | 更新时间：2024-06-05

- OSU based M-OTN technology innovation and verification
- Telecommunications Science Vol. 37, Issue 4, Pages: 116-124(2021)
- 作者机构：
  
  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
- 作者简介：
- 基金信息：
- DOI：10.11959/j.issn.1000-0801.2021060
  CLC： TN914
- Published Online：2021-04，
  
  Published：20 April 2021
- 稿件说明：
移动端阅览
Ruiquan JING, Xiaoli HUO, Junjie LI, et al. OSU based M-OTN technology innovation and verification[J]. Telecommunications science, 2021, 37(4): 116-124.
DOI：

Ruiquan JING, Xiaoli HUO, Junjie LI, et al. OSU based M-OTN technology innovation and verification[J]. Telecommunications science, 2021, 37(4): 116-124. DOI： 10.11959/j.issn.1000-0801.2021060.

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。

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.

关键词

Keywords

references

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唐雄燕 , 王海军 , 杨宏博 . 面向专线业务的光传送网(OTN)关键技术及应用 [J ] . 电信科学 , 2020 , 36 ( 7 ): 18 - 25 .

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ITU-T . Hitless adjustment of ODUflex(GFP):G.7044 [S ] . 2011 .

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