光传送网中数字包封技术  

Analysis and Researches on Digital Wrapper

作　　者：刘继忠[1] 周德新[1] 

机构地区：[1]桂林电子工业学院通信与信息工程系,广西桂林541004

出　　处：《桂林电子工业学院学报》2003年第5期26-30,共5页Journal of Guilin Institute of Electronic Technology

摘　　要：数字包封技术提供了ITU标准所要求的网络管理功能,即光网络层性能监视,前向纠错(FEC)功能,它把用于解决传输带宽问题的DWDM技术转变为一种实用的网络技术。文中阐述数字包封技术基本原理的同时,对几种核心包封处理芯片进行了对比,着重给出了SDH信号通过数字包封应用系统映射到OTN的设计实现方案,并对关键问题进行分析。数字包封器的应用能使得光传送网的网络管理变得统一简洁,为将来全光网络的实用奠定了一定的基础。Digital Wrapper technology provides the network management functions required by ITU standards to enable optical transport networks. These include opticallayer performance monitoring and forward error correction (FEC). Digital Wrapper transforms DWDM from a solution for overcoming transport capacity limitations to a true networking technology. The theory of Digital Wrapper technology and comparison of some Digital Wrapper devices are discussed in the paper. The technology of the application system that realize the Digital Wrapper between SDH and OTN is particularly dealt with, and some key technology are also analyzed. The application of the Digital Wrapper makes network administration of OTN sample and uniform, and provides excellent foundation for the AON. 

关 键 词：光传送网 数字包封 前向纠错 DWDM SDH信号 网络管理 

分 类 号：TN929.11[电子电信—通信与信息系统]