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PWE3仿真机制的PTN技术继承了MSTP、增强型以太网和IP/MPLS技术的特性,解决了传输技术对数据业务处理能力不足造成带宽浪费严重和路由技术对长距业务处理能力欠缺的问题.首先,PTN技术与MSTP、增强型以太网和IP/MPLS技术的对比,得出PTN技术完全满足实际需求.然后,进行了基于PTN技术的大型本地城域承载网组网和基站回传、固定接入并重的全业务承载网设计.最后,对PTN的关键技术进行了相应设计:包括时间同步设计、3层VPN进化设计、双归保护设计和故障处理设计.
PWE3 emulation mechanism PTN inherits the features of MSTP, enhanced Ethernet and IP / MPLS technology and solves the problem of serious bandwidth waste caused by the lack of data service processing capability of transmission technology and the lack of capability of routing technology for long-distance service processing. , PTN technology and MSTP, enhanced Ethernet and IP / MPLS technology, the conclusion PTN technology fully meet the actual needs.Then, based on PTN technology for large local metropolitan area bearer network and base station backhaul, fixed Including the time synchronization design, evolutionary design of 3-layer VPN, dual-homed protection design and fault handling design.Finally, the key technologies of PTN are designed accordingly.