OTN Alarms & Errors

I would recommend you this PDF: https://www.veexinc.com/en-us/Download/TechnicalNotes/66840002

• OOF: Out of Frame; 帧失步

• LOF: Loss of Frame; 帧丢失

• OOM: Out of Multiframe; 复帧失步

• LOM: Loss of Multiframe; 复帧丢失

• LOS: Lost of Signal; 信号丢失

• AIS: Alarm Indication Signal; 告警指示信号: 当上游有LOS时，下游AIS告警(接收到全1码)

• FTFL: fault type and fault location