CAJ | 학술논문

基于MPLS-TP的PTN技术广泛用于运营商城域传送网，为LTE回传、集客专线、家庭宽带等业务提供端到端高质量承载。近年来，用户信息量、业务种类等需求激增，对PTN在多业务承载、带宽容量、OAM、保护及设备集成度等方面提出了更高要求。城域POTN通过研究分析设备转发平面、光层、映射路径、OAM与保护等关键技术，全面优化和革新设备，将PTN与OTN深度有机融合。实际应用中，POTN组网可根据业务需求灵活选择承载模型，具有良好的应用发展前景。
기우MPLS-TP적PTN기술엄범용우운영상성역전송망，위LTE회전、집객전선、가정관대등업무제공단도단고질량승재。근년래，용호신식량、업무충류등수구격증，대PTN재다업무승재、대관용량、OAM、보호급설비집성도등방면제출료경고요구。성역POTN통과연구분석설비전발평면、광층、영사로경、OAM여보호등관건기술，전면우화화혁신설비，장PTN여OTN심도유궤융합。실제응용중，POTN조망가근거업무수구령활선택승재모형，구유량호적응용발전전경。
PTN technology based on MPLS-TP is widely used in metro transport network, to provide high quality end-to-end carrier for LTE service, commercial customer service and family broadband service. In recent years, with the rapid development of user information and various kinds of service, PTN network is facing the new chal enges and further need, including unified multi-service transport, bandwidth expansion, OAM, protection and equipment integration. By researching and analyzing key tech-niques such as equipment forwarding plane, optical layer, mapping path, OAM and protection, Metro POTN has a comprehen-sive optimization and innovation of the equipment, better integrates PTN and OTN technology deeply. In practical application, POTN network can flexibly choose service transport model according to the needs of the service, it has a good development prospects.