国际传输专线承载方式的演进探讨  

Discussion on Evolution of IPLC/IEPL Bearing Mode

作　　者：王翔 黄书广[1] 乔月强[1] Wang Xiang;Huang Shuguang;Qiao Yueqiang(China Information Technology Designing&Consulting Institute Co.,Ltd.Zhengzhou Branch,Zhengzhou 450007,China)

机构地区：[1]中讯邮电咨询设计院有限公司郑州分公司,河南郑州450007

出　　处：《邮电设计技术》2022年第3期76-81,共6页Designing Techniques of Posts and Telecommunications

摘　　要：当前国际传输专线呈现GE以上高速电路快速增长、低速业务长期存在、多种业务类型并存的发展形势,而传统的OTN&SDH平台的承载方式存在SDH设备停产、带宽利用率低等局限性。在介绍PeOTN和Liquid OTN设备的关键技术基础上,分别对其在国际传输网络中的承载应用进行分析,对其和国际传输现网的混合组网场景进行解读。通过对比PeOTN和Liquid OTN承载大客户传输专线的优缺点,尤其是在国际传输场景下重点关注的因素,探讨了2种技术在国际传输网演进发展中的部署策略。At present,the IPLC/IEPL presents the development situation of rapid growth of high-speed circuits above Ge,long-term existence of low-speed services and coexistence of various business types. The traditional way of carrying IPLC/IEPL by OTN&SDH equipment has its limitations such as EOM of SDH equipment,low utilization of band width,and so on. Based on the introduction of the key technology of PeOTN&Liquid OTN,it respectively analyzes the application of each technique in carrying IPLC/IEPL and how to mix PeOTN&Liquid OTN into the existing international transmission network. Moreover,by comparing the advantages and disadvantages of PeOTN and liquid OTN carrying large customer transmission lines,especially the key factors in the international transmission scenario,it discusses the deployment strategies of the two technologies in the evolution and development of international transmission networks.

关 键 词：PeOTN Liquid OTN SDH MPLS-TP 传输专线 

分 类 号：TN913[电子电信—通信与信息系统]