BASETRAP_1.3.6.1.4.1.2011.5.25.129.2.2.11 hwVoltFallingAlarm
Description
BASETRAP/1/VOLTFALLING: OID [oid] Voltage has fallen below the lower pre-alarm limit. (Index=[INTEGER], BaseThresholdPhyIndex=[INTEGER], ThresholdType=[INTEGER], ThresholdIndex=[INTEGER], Severity=[INTEGER], ProbableCause=[INTEGER], EventType=[INTEGER],PhysicalName="[OCTET]", ThresholdValue=[INTEGER], ThresholdUnit=[INTEGER], ThresholdLowWarning=[INTEGER], ThresholdLowCritical=[INTEGER])
The voltage is less than the lower threshold.
Attribute
| Alarm ID | Alarm Severity | Alarm Type |
|---|---|---|
| 1.3.6.1.4.1.2011.5.25.129.2.2.11 | Critical | environmentalAlarm(6) |
Parameters
| Name | Meaning |
|---|---|
| [oid] | Indicates the ID of the MIB object. |
| Index | Indicates the index of the entity. The entity in the alarm is a board. |
| BaseThresholdPhyIndex | Indicates the index of the entity. The entity in an alarm on voltage can be a board, fan, or power module. |
| ThresholdType | Indicates the type of the threshold that triggers
the alarm. The possible threshold types are as follows: 1) temperatureSensor: temperature sensor 2) humiditySensor: humidity sensor 3) voltageSensor: voltage sensor 4) currentSensor: current sensor 5) powerSensor: power sensor 6) portTraffic: traffic of the port 7) portCrcError: CRC check of the port 8) portBroadcast: broadcast traffic on the port This alarm is triggered by the threshold of the voltage sensor. |
| Severity | Indicates the severity level of the alarm. |
| ProbableCause | Indicates the possible causes of the alarm. The
code of the possible cause is as follows: 533: IANAITUPROBABLECAUSE_POWERPROBLEMS indicates that the power module is faulty. |
| EventType | Indicates the alarm type. Alarms are classified
into the following types:
This alarm is an alarm of the environmentalAlarm type. |
| PhysicalName | Indicates the physical name of the entity. |
| ThresholdIndex | Indicates the subindex of the entity where the alarm is generated. A subindex identifies a voltage sensor when there are multiple voltage sensors on a board. |
| ThresholdValue | Indicates the current voltage. You can run the display voltage all command to view the current voltage of the board and the voltage threshold. |
| ThresholdUnit | Indicates the unit of the voltage. The unit is
as follows: 4: THRESHOLDUNIT_VOLTAGE1 indicates that the voltage is expressed in V. |
| ThresholdLowWarning | Indicates the voltage threshold that triggers a minor alarm. The voltage threshold is determined by the hardware characteristics of the sensor. You can run the display voltage all command to view the threshold of the sensor on a board. |
| ThresholdLowCritical | Indicates the voltage threshold that triggers a critical alarm. Currently, the value of this parameter is the same as the value of ThresholdLowWarning. |
Possible Causes
Cause 1: The board has failed.
Cause 2: A power module in the switch has failed.
Cause 3: The power provided to the switch is insufficient because there are not enough power modules in the switch.
Procedure
- Run the display
device command to check device information. Based
on the information, check whether the models of power modules installed
in the device are supported by the chassis and whether the power modules
are sufficient to provide power to all the boards installed in this
chassis. For the models of power modules supported by each chassis
model, see Hardware Description > Chassis > Power Supply Slot Configuration.
- If so, go to step 3.
- If not, go to step 2.
- Replace the unsupported power modules with those supported
by the chassis, and add power modules based on the required power
to ensure power sufficiency. Check whether the alarm is cleared.
- If so, no action is required.
- If not, go to step 3.
- Check whether any power module has a hardware failure.
- If so, go to step 4.
- If not, go to step 5.
Use a power module that can work normally to replace the power modules in the switch one by one. Each time a power module is replaced, run the display voltage slot slot-id command to check the voltage on each board. If all boards have normal voltage, the replaced power module has a hardware failure.
- Replace the faulty power module. Run the display voltage slot slot-id command
to check whether the voltage of the board that has generated the alarm
is normal.
- If so, no action is required.
- If not, go to step 5.
- Reset the board and check whether the alarm is cleared.
- If so, no action is required.
- If not, go to step 6.
- Replace the board and check whether the alarm is cleared.
- If so, no action is required.
- If not, contact technical support personnel.
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