论文部分内容阅读
PTN分组传送网是一种以分组业务为核心,并支持TDM和ATM等多种业务的光传输网。相比以往传统的SDH和MSTP设备,PTN设备的使用成本更低,且继承了传统SDH设备良好的可靠性、完善的的OAM和网管机制。同时它还兼具数据通信设备对IP突发业务良好的适应能力,具有灵活的业务宽管理机制以及流量工程特性。目前PTN已经成为本地城域网和以及移动回传网使用的主要技术之一。本文简要介绍了PTN技术的产生背景、性能特点,并对PTN设备组网应用进行阐述。
PTN packet transport network is a packet service as the core, and supports TDM and ATM and other optical transport network business. Compared with the traditional SDH and MSTP devices, PTN devices are less costly to use and inherit the good reliability of traditional SDH devices, perfect OAM and network management mechanisms. At the same time, it also possesses good adaptability of data communication equipment to IP burst service, flexible service wide management mechanism and traffic engineering features. Currently, PTN has become one of the main technologies used by local metropolitan area networks and mobile backhaul networks. This article briefly introduces the PTN technology background, performance characteristics, and PTN equipment networking applications are described.