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用分层方法讨论了光传送网络的告警管理功能 ,着重分析了全光网络中缺陷指示信号的起源、传输与终结问题 .此外还对光监控信道的故障情况的处理方法进行了讨论 .
This paper discusses the alarm management function of the optical transport network by using the layering method and analyzes the origin, transmission and termination of the defect indication signal in the all optical network, and also discusses how to deal with the fault conditions of the optical supervisory channel.