Appendix A Notifications, Fault Management, and Probable Cause Mapping

Probable Cause Mapping

A.5 Probable Cause Mapping

A.5.1 TMF-Defined Probable Cause

 

 

 

The following report lists the probable causes defined by the TMF:

 

 

 

"UNIDENTIFIED": for alarms that do not match any other string below. EMS shall in this

 

 

 

case fill out the additional text field as much as possible.

 

 

 

"AIS": alarm indication signal

 

 

 

"AMS": Alternate modulation signal

 

 

 

"AU-AIS": AU alarm indication signal

 

 

 

"BER_SD": signal degrade (includes receiver degrade)

 

 

 

"BER_SF": signal fail (includes receiver failure and excessive BER)

 

 

 

"DCC_FAILURE": Data Communication Channel Failure

 

 

 

"EMS": EMS system alarm

 

 

 

"EMS_ALM_LOSS": The 1st notification that the EMS may supply after 1 or more notifications

 

 

 

for protection switch, TCA, alarm, or file transfer status have been discarded by the EMS

 

 

 

while other events have not been discarded

 

 

 

"EMS_LIFECYCLE_LOSS": The 1st notification that an EMS may supply after 1 or more events

 

 

 

of type OC/OD/AVC/SC/RC have been discarded by the EMS

 

 

 

"EMS_ALM_AND_LIFECYCLE_LOSS": The 1st notification that an EMS may supply after 1 or more

 

 

 

notifications for protection switch, TCA, alarm, or file transfer status, and 1 or more

 

 

 

events of type OC/OD/AVC/SC/RC have been discarded by the EMS

 

 

 

"EQPT": equipment alarm

 

 

 

"ENV": Environmental/external cause

 

 

 

"FOP_APS": failure of APS protocol

 

 

 

"LCD": Loss of Cell Delineation (from TC Adaptor part of ATM NI)

 

 

 

"LOF": loss of frame (when distinguished from LOS)

 

 

 

"LOM": loss of multiframe (SDH only, since not an alarm in GR-253)

 

 

 

"LOP": loss of pointer

 

 

 

"LOS": loss of signal

 

 

 

"MS-AIS": MS alarm indication signal

 

 

 

"OSC-AIS": Optical Supervisory Channel alarm indication signal

 

 

 

"OSC_BER_SF": Optical Supervisory Channel signal fail/RX fail/excessive BER

 

 

 

"OSC_FERF": Optical Supervisory Channel Far End Receive Failure

 

 

 

"OSC_LOF": Optical Supervisory Channel Loss of Frame

 

 

 

"OSC_LOS": Optical Supervisory Channel Loss of Signal

 

 

 

"OSC_SD": Optical Supervisory Channel signal degrade

 

 

 

"PLM": payload label mismatch (when reported as an alarm)

 

 

 

"RAI": remote alarm indication (sometimes reported as RDI)

 

 

 

"SECURITY_VIOLATION": security violation

 

 

 

"SSF": server signal fail

 

 

 

"TCM-AIS": Tandem Connection Sink - Incoming Alarm Indication Signal

 

 

 

"TCM-LOS": Tandem Connection Sink - Loss of Tandem Connection Signal

 

 

 

"TCM-OAI": Tandem Connection Sink - Outgoing Defect Indication (same/similar to Alarm

 

 

 

Indication)

 

 

 

"TCM-RAI": Tandem Connection Sink - Remote Defect Indication (same/similar to Alarm

 

 

 

Indication)

 

 

 

"TCM-SD": Tandem Connection Sink - Signal Degrade

 

 

 

"TCM-SSF": Tandem Connection Sink - Server Signal Fail

 

 

 

"TCM-TIM": Connection Sink - Trace Identifier Mismatch

 

 

 

"TCM-UNEQ": Tandem Connection Sink - Unequipped

 

 

 

"TIM": trace identifier mismatch (when reported as an alarm)

 

 

 

"TU-AIS": TU alarm indication signal

 

 

 

"TX_DEGRADE": transmitter degrade, including laser degrade

 

 

 

"TX_FAIL": transmitter failure, including laser failure

 

 

 

"UAT": Unavailable Time

 

 

 

"UNEQ": payload unequipped

 

 

 

"VC-AIS": VCL/VCC TP Alarm Indication Signal

 

 

 

"VC-RDI": VCL/VCC TP Remote Defect Indication

 

 

 

"VP-AIS": VPL/VPC TP Alarm Indication Signal

 

 

 

Cisco Transport Manager Release 8.5 GateWay/CORBA User Guide and Programmer Manual

 

 

 

 

 

 

 

 

 

A-12

 

OL-14253-01

 

 

 

 

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Cisco Systems OL-14253-01 appendix Probable Cause Mapping, TMF-Defined Probable Cause