PTN与SDH的技术比较及发展趋势分析

摘要

This article study and analyse PTN technology.compare with SDH in layer network model, equipment architecture,multi-service support,OAM, application,etc..The advantage and disadvantage of PTN and SDH technology are summarized. The status quo and prospect of these technology are also discussed.%对PTN技术进行研究分析,并在层网络模型、设备架构、多业务支持、OAM、应用定位等方面与SDH技术进行比较.总结了PTN和SDH技术的优缺点,探讨了这两种技术的现状及未来发展前景.