SDH传输网网络设计及运用

SDH Transmission Network Network Design and Use

高速发达的信息社会要求通信网络向智能化、数字化和综合化方向发展，传输系统作为通信网络的重要组成部分，其好坏直接制约着通信网络的发展。当前世界各国大力发展的信息高速公路，重点就是组建大容量的传输光纤网络。扩宽传输频带，提高传输线路的信号速率。SDH技术在骨干网中被广泛采用，在接入网中也充分利用SDH标准化的光接口、灵活网络拓扑能力、强大的网管能力和高可靠性带来的好处。本文首先进行SDH的技术分析，然后重点阐述了SDH传输网网络设计及运行。

High-speed advanced information society requires the intelligent communication networks,digital and integrated direction,the transmission system as an integral part of the communication network,and its quality directly restricts the development of communication networks.At present the world to develop the information superhighway, the focus is the formation of high-capacity fiber-optic transmission network,widening the transmission bandwidth, improved signal transmission line rate.SDH technology in the backbone network is widely used in the access network,also take advantage of SDH optical interfaces standardized, flexible network topology capabilities,powerful network management capabilities and reliability benefits.In this paoer, the technical analysis of SDH and SDH transmission network focuses on network design and operation.