SONET Alarms
- Section: B1 Code Errors, OOF (Out of Frame), LOF, Frame pattern errors, LOS
- Line: B2 Code Errors, LOP, FEBE, AIS
- Path: B# Code Errors, AIS, Yellow, FEBE
Payload Parameters
- VT Path: BIP-2, AIS, Path Yellow, FEBE
- DS3 Payload: Parity and Frame errors, Bit Errors, AIS, Idle and All Ones, X-Bit
- VT1.5 Payload: Bit Errors (PRBS or fixed word), AIS, Yellow, CRC-6, Frame errors, LOF
- STS-3c Payload: Bit Errors
T-carrier Parameters
- DS3: BPV, Parity, Bit and Status parameters
- DS1: BPV, CRC, Bit and Status parameters
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