随着同步数字系列(Synchronous Digital Hierarchy,SDH)/多业务传送平台(Multi Service Transport Platform,MSTP)的停建和退网,光传送网(Optical Transport Network,OTN)在边缘接入层引入虚容器(Virtual Container,VC)和分组交换(Packet Switching,PKT)方案,不能满足小颗粒业务超低时延、高汇聚比的要求.基于此,介绍光业务单元(Optical Service Unit,OSU)产生的背景、技术原理和技术特点,然后从智能电网领域继电保护、安稳等业务的需求出发,分析智能电网中业务承载的痛点,提出了基于OSU技术的多业务光传送网络(Multi-service Optical Transport Network,Ms-OTN)的统一承载方案,总结应用建议,为电网中的智能承载网建设提供参考.
OSU Based Smart Grid Bearing Technology Application
With the discontinuation and retirement of Synchronous Digital Hierarchy(SDH)/Multi Service Transport Platform(MSTP),Optical Transport Network(OTN)introduces Virtual Container(VC)and Packet Switching(PKT)solutions at the edge access layer,which cannot meet the requirements of ultra-low latency and high aggregation ratio for small granular services.Optical Transport Network(OTN)introduces Virtual Container(VC)and Packet Switching(PKT)schemes at the edge access layer,which cannot meet the requirements of ultra-low latency and high aggregation ratio for small granular services.Based on this,we introduce the background,technical principle and technical characteristics of Optical Service Unit(OSU),and then analyze the pain points of service bearing in smart grid from the demand of relay protection,security and stability services in the field of smart grid,and put forward Multi-service Optical Transport Network(Ms-service)based on OSU technology.Optical Transport Network(Ms-OTN)based on OSU technology is proposed as a unified bearer scheme,and application suggestions are summarized to provide reference for the construction of smart bearer network in power grid.
optical service unitmulti-service transport platformOptical Service Unit(OSU)
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