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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
[ "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" ]
网络出版日期:2021-04,
纸质出版日期:2021-04-20
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荆瑞泉, 霍晓莉, 李俊杰, 等. 以OSU为核心的M-OTN技术创新与验证[J]. 电信科学, 2021,37(4):116-124.
Ruiquan JING, Xiaoli HUO, Junjie LI, et al. OSU based M-OTN technology innovation and verification[J]. Telecommunications science, 2021, 37(4): 116-124.
荆瑞泉, 霍晓莉, 李俊杰, 等. 以OSU为核心的M-OTN技术创新与验证[J]. 电信科学, 2021,37(4):116-124. DOI: 10.11959/j.issn.1000-0801.2021060.
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.
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。
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.
CCSA . OTN支持1G以下客户信号技术研究 [R ] . 2019 .
CCSA . Study of technologies of sub1G services over OTN [R ] . 2019 .
荆瑞泉 , 赵国永 , 徐云斌 , 等 . 接入型 OTN 设备统一管控系统原型开发与试验演示 [J ] . 电信科学 , 2020 , 36 ( 4 ): 154 - 160 .
JING R Q , ZHAO G Y , XU Y B , et al . Prototype development and demonstration of unified management-control system of access-type OTN [J ] . Telecommunications Science , 2020 , 36 ( 4 ): 154 - 160 .
ITU-T . OTU25 and OTU50 short-reach interfaces:G.709.4 [S ] . 2020 .
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 .
TANG X Y , WANG H J , YANG H B . Key technologies and application of optical transport network for leased line services [J ] . Telecommunications Science , 2020 , 36 ( 7 ): 18 - 25 .
ITU-T . Hitless adjustment of ODUflex(GFP):G.7044 [S ] . 2011 .
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