ROADM技术在区域骨干网中的部署策略

Deployment Strategy of ROADM Technology in Regional Backbone Network

随着长三角、京津冀、粤港澳等区域一体化发展以及“东数西算”等国家层面的发展机遇与政策指引,可重构光分插复用器(Reconfigurable Optical Add-Drop Multiplexer,ROADM)的应用驱动力已经非常明显。业务方面,业务颗粒已达100GE,光层调度更为经济;组网方面,运营商网络正在从点到点演进为网状,ROADM在灵活调度、业务管理、可用性、恢复效率以及低时延传输等方面有较大优势。运营商在传输层面引入ROADM,从而实现传输、接入和交换的端到端光网络。文章重点研究区域骨干网的ROADM部署策略。

With the development of regional integration in the Yangtze River Delta,Beijing-Tianjin-Hebei region,Guangdong-Hong Kong-Macao and other national-level development opportunities and policy guidance such as“East Digital West Computing”,the application driving force of Reconfigurable Optical Add-Drop Multiplexer(ROADM)is already very obvious.In terms of service,the service rate has reached 100GE,and the optical layer scheduling is more economical;In terms of networking,carrier networks are evolving from point-to-point to mesh,ROADM has advantages in flexible scheduling,service management,availability,recovery efficiency,and low-latency transmission.Operators introduce ROADM at the transmission level to realize an end-to-end optical network for transmission,access and switching.This paper focuses on the strategy of introducing ROADM technology into the all-optical transport network.