铁路OTN光传输网络规划的保护策略研究

Research on Protection Strategy in Railway OTN Optical Transmission Network Planning

根据铁路传输干线网近3年的OTN网络建设,研究铁路OTN干线网络的保护策略,指出铁路OTN网络规划中常用的保护方式,指出OLP光线路保护等保护方式在实际网络实施中的若干问题,并提出经过现网验证的规避方法。

This paper discusses the railway trunk OTN network protection strategy according to OTNnetwork construction of railway transmission backbone networks in recent three years and points outcommon protection modes applied in OTN railway network planning. And it also points out a number ofissues of the optical line protection （OLP） modes in the actual network implementation, and puts forwardsolutions to avoid the issues through the existing network verification.