ENTITYTRAP_1.3.6.1.4.1.2011.5.25.219.2.4.19 hwOpticalBiasCurrentAlarm

Description

ENTITYTRAP/3/OPTBIASCURALM: OID [oid] The bias current exceeds the upper alarm threshold or falls below the lower alarm threshold. (Index=[INTEGER], EntityPhysicalIndex=[INTEGER], PhysicalName="[OCTET]", EntityTrapFaultID=[INTEGER], EntityTrapReasonDescr="[OCTET]")

The bias current of the laser on an optical module is higher than the upper alarm threshold or lower than the lower alarm threshold.

Attribute

Alarm ID	Alarm Severity	Alarm Type
1.3.6.1.4.1.2011.5.25.219.2.4.19	Minor	equipmentAlarm(5)

Parameters

Name	Meaning
oid	Indicates the MIB object ID of the alarm.
Index	Indicates an index.
EntityPhysicalIndex	Indicates the index of the physical entity.
PhysicalName	Indicates the entity name.
EntityTrapFaultID	Indicates the error code. 153088 indicates that the bias current of the laser on an optical module exceeds the upper alarm threshold. 153089 indicates that the bias current of the laser on an optical module is lower than the lower alarm threshold.
EntityTrapReasonDescr	Indicates the alarm reason.

Impact on the System

If the bias current of the laser on an optical module is too low, the gain is insufficient. If the bias current is too high, the laser is damaged and even services are interrupted.

Possible Causes

Cause 1: The laser on the optical module is aged.

Cause 2: The card is faulty.

Procedure

Replace the optical module of the port that reports the alarm or the card that reports the alarm.

Related Information

ENTITYTRAP_1.3.6.1.4.1.2011.5.25.219.2.4.20 hwOpticalBiasCurrentAlarmResume