电力通信SDH/MSTP网络向PTN网络演进的策略研究

目前，数据业务在电力通信中占有越来越重要的地位，为适应电力通信业务IP化发展需要，电力通信光传送网必然向分组化演进和发展。文章在说明电力通信业务现状及IP化发展基础上，分析了SDH／MSTP光传送网存在的问题，指出在现有分组传送网中，基于T-MPLS／MPLS—TP的分组传送网（PTN）是电力通信最佳技术方案。给出了电力通信PTN网络解决方案，提出了电力通信现有SDH／MSTP网络向PTN网络的演进策略。

Discussion on Network Evolution Strategies From SDH/MSTP to PTN for Power Communication

At present, the data service plays a more and more important role in the power communication, in order to accommodate to the development of IP evolution of the electric power communication service, it is inevitable for the optical transport network to evolve into the packetized network. Based on the situations of the power communication service and the development of the IP evolution, this paper analyzes some problems in the SDH/ MSTP based optical transport network, and points out that the PTN packed transmission network based on the T-MPLS/MPLS-TP is the best technology for the power communication among the existing packed transmission network. Further, this paper describes a power communication PTN network based solution, and proposes the evolution strategies from the existing SDH/MSTP network to the PTN network.