PTN城域传送网平台网络演进探讨

摘要

The paper introduces PTN metro transport network as the main bearer technology, elaborated the advantages PTN technology have compared with MSTP technology, analyses PTN technology trends, and proposed evolution strategy for metro transport carrying the whole business of carrying network in three phases based on PTN technology, to provide ideas and information for the construction of the metro transport network.%本文通过对PTN作为城域传送网主要承载技术的介绍，阐述了PTN技术相对MSTP的技术优势，分析了PTN技术的发展趋势，并提出了城域传送网基于PTN技术分3个阶段承载全业务的网络演进策略，为城域传送网的建设提供思路与参考。