摘要
分组传送网(PTN)是业内关注的电信级承载技术热点之一。在国际标准尚未完成的情况下,中国的PTN设备开发和网络应用处于领先地位。文章基于中国通信标准化协会(CCSA)通信行业标准《分组传送网(PTN)总体技术要求》,重点阐述了PTN网络功能架构、多业务承载和数据转发功能、PTN网络保护、运行管理维护(OAM)架构和功能要求4个方面的内容。结合中国运营商和设备商的利益,文章对涉及PTN行标的技术选择、网络应用和后续发展的关键问题进行了探讨。
Packet Transport Network（PTN） is one of the hot research interests in carrier technologies.Although the international standards are not yet complete,China is leading the world in the development of PTN equipment and network applications.With ＂General Technical Requirements for Packet Transport Networks＂ as the CCSA standard,this paper first introduces the background of PTN technology and standards,then illustrates four important aspects：the PTN network architecture,multi-services bearing and data transfer function,PTN network protection,and OAM architecture and functional requirements.Finally,considering the profit motive of Chinese carriers and vendors,some key issues on PTN technology choice,network applications,and future evolution.
出处
《中兴通讯技术》
2010年第3期1-4,共4页
ZTE Technology Journal
基金
国家高技术研究发展计划("863"计划)课题(2007AA01Z253)
