铁路光传送网网络节点冗余方式研究

Research on Redundancy Classifi cation of Network Nodes in Chinese Railway Optical Transmission Network

主要研究了我国铁路光传送网络的网络节点的分类以及网络节点冗余方式。为了提高铁路OTN网络的可靠性,增强网络调度的灵活性,骨干层、汇聚层OTN传输网络适合采用单平面组网方式,核心节点冗余保护设置为同城异地、多节点冗余方式。在接入层OTN网络中,建议网络节点设置在有业务接入的车站或区间,采用OTN网络保护方式提高网络可靠性。

The classification of network nodes and the redundancy of network nodes of Chinese railway optical transmission network are discussed.In order to improve the reliability of the OTN and to enhance the flexibility of scheduling of the OTN network,single plane network is adopted as its backbone layer and convergence layer and theredundancy protection of core nodes is set as local remote management with multi-node redundancy mode.In the OTN network of access layer,it is recommended that network nodes be set up in a station or a section with service access and OTN network protection mode be adopted to enhance the reliability of the network.