摘 要:文章以传输系统为对象,论述采用双平面网络为组网手段,使用分组平面承载大颗粒数据业务,分组平面以IP 业务为核心,在MPLS 技术的基础上引入SDH 的传输理念并且业务通过弹性管道进行承载,线路侧单光口带宽可达40 G,相较SDH 网络有4 倍的提升。使用SDH 平面承载传统E1 等小颗粒业务,二者物理分离。可以有效解决传统光网络系统硬管道、传送效率低、对于大颗粒业务承载差等技术难题。
关键词:传输系统;OTN;双平面组网
中图分类号:TN914;U239.5 文献标识码:A 文章编号:2096-4706(2020)07-0066-03
Application and Development Trend of Transmission System in the Field of Rail Transit
ZHANG Chunjie,WU Zhibo
(Neusoft Group Co.,Ltd.,Shenyang 110179,China)
Abstract:This paper takes the transmission system as the object,discusses the use of biplane network as the networking means,the use of packet plane to carry large granular data services,packet plane to IP services as the core,on the basis of MPLS technology,the introduction of SDH transmission concept and services through the elastic pipeline to carry out,the line side single optical port bandwidth can be up to 40 G,which is 4 times higher than SDH network. SDH plane is used to carry small particle services such as traditional E1,which are physically separated. It can effectively solve the technical problems of traditional optical network system,such as hard pipe,low transmission efficiency,and poor carrying capacity for large-scale granular services.
Keywords:transmission system;OTN;biplane networking
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作者简介:
张春杰(1972.01—),男,汉族,山东莱芜人,高级工程师,轨道交通业务总监,硕士,研究方向:计算机及通信技术;
武智博(1986.05—),男,汉族,辽宁沈阳人,高级职称,资深系统工程师,本科,研究方向:轨道交通通信系统集成。