Value,Description,Reference
0,Reserved,[RFC4454]
1,No Alarm type specified (default),[RFC4454]
2,Alarm Indication Signal (AIS),[RFC4454]
3,Remote Defect Indicator (RDI),[RFC4454]
4,Loss of Signal (LOS),[RFC4454]
5,Loss of pointer (LOP),[RFC4454]
6,Loss of framer (LOF),[RFC4454]
7,loopback cells (LB),[RFC4454]
8,Continuity Check (CC),[RFC4454]