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MSTP是一种基于传统SDH技术，同时实现TDM、ATM、以太网等多种业务的接入、处理和传送功能，并提供统一网管的多业务节点的城域网传送技术。本文从MSTP业务承载现状出发，通过业务需求和案例分析提出MSTP和IP RAN协调发展的网络建设模型和MSTP设备拆除挖潜建设策略。对于未来MSTP网络定位建设具有一定的指导意义。“,”MSTP,based on traditional SDH,is a MAN transmission technology,and could simultaneously implement the access, processing and transmission of TDM,ATM and Ethernet,and provide multi-service nodes of the unified network management system.This article analyses the MSTP service present situation,through the analysis of business requirements we put forward the network construction model and the demolition and potential construction strategy of MSTP and IP RAN coordinated development.This paper has certain directive significance for future MSTP network construction.