基于开放光传送网络的域间故障定位技术研究与实践

目前,不同专业设备的网络管控系统相对独立,如何快速恢复域间光网络故障是当下网络运维需要解决的问题。针对域间光网络的故障定位方案展开研究,域间网络发生故障后,先通过链路自动发现协议和光模块调顶技术获取完整的链路信息和模块数据,再利用性能实时监控技术和根因分析功能找到当前故障的根告警。综合运用这些方法并通过开发的传输网络运行质量分析原型系统将光传送网络的管理域外延,从而形成包含远端客户侧在内的端到端的开放光传送综合管控系统。

Research and practice on fault location technology based on open optical transport network

At present the network management system of different types of equipment are relatively independent.The problem about how to quickly recover network failure towards inter-domain optical networks is required to be solved in terms of network operation and maintenance.Some fault location schemes within inter-domain optical networks were studied.When any inter-domain fault occurs, firstly, some technologies about automatic link discovery protocol and pilot tone technology of optical modules were applied to get complete optical link information and data.Then, real-time performance monitoring technology and root cause analysis function were used to find the root alarm towards specified network fault.Ultimately the management domain of optical transport networks has been extended by using those methods above on basis of developed prototype system of transmission network operation quality analysis, which may produce an end-to-end open and unified optical transport network management system including the remote client side.