Niranjan B RTTC MYSORE

BASIC SDH ALARMS

Scenario3 Network Elements(NEs)

Requirement: Basic SDH Concepts and Section Over Head (SOH)Bytes

NE-1NE-3 NE-3

LOS-Loss Of SignalAIS-Alarm Indication Signal

RDI-Remote Defect Indication

LOF-Loss Of FrameAIS-Alarm Indication Signal

RDI-Remote Defect Indication

TIM-Trace Identifier MismatchAIS-Alarm Indication Signal

RDI-Remote Defect Indication

BIP-Bit Interleaving Parity

AIS-Alarm Indication SignalRDI-Remote Defect Indication

EXC-Excessive Bit Error rate( > 10x E-3)

BIP-Bit Interleaving Parity

RDI-Remote Defect Indication

REI-Remote Error Indication

DEG-Degradation

AIS-Alarm Indication SignalRDI-Remote Defect Indication

LOP-Loss Of Pointer

UNEQ- UNEQuipped

TIM-Trace Identifier Mismatch

BIP-Bit Interleaving Parity

RDI-Remote Defect Indication

REI-Remote Error Indication

DEG-Degradation

EXC-Excessive Bit Error rate( > 10x E-3)

PLM-Path Load Mismatch

AIS-Alarm Indication SignalRDI-Remote Defect Indication

LOP-Loss Of Pointer

TIM-Trace Identifier Mismatch

BIP-Bit Interleaving Parity

RDI-Remote Defect Indication

REI-Remote Error Indication

DEG-Degradation

EXC-Excessive Bit Error rate( > 10x E-3)

PLM-Path Load Mismatch

UNEQ- UNEQuipped

LOM-Loss Of Multi frame