20045 Failed to Get Temperature

Description

This alarm is generated when the reading of board temperature from test point fails.

Alarm ID	Alarm Severity	Alarm Type
20045	Major	Fault

ID	Name	Meaning
1	Subrack No.	Subrack No.
2	Slot No.	Slot No.
3	Cpu No.	CPU No.
4	Alarm Attribute	0=Normal, Alarms period are longer than the Transient Threshold. 1=Transient Count, The times and the period of the alarms whose periods are shorter than the Transient Threshold are summed up. If the sum result is longer than the Alarm Occurrence Period Threshold or Alarm Occurrence Times Threshold, an alarm so called Transient Count Alarm is triggered. Because Transient Count Alarm is based on accumulative result, the recovery of the alarm may occur at least one Summing Cycle later. The Summing Cycle can be query by MML "LST STATSLDWIN".

Temperature cannot be monitored. Thus, some devices may be burned in the case of too high temperature.

Adjust the fan to work at full speed.
For the board that works as the active board in active/standby mode, a switchover is performed if allowed.
For the standby board in active/standby mode: No system action is taken.
For the board in independent mode: No system action is taken.

The temperature monitoring device is faulty.

Check whether the board is in Independent operation mode.
Y => The board is in independent operation mode. Go to 5.

N => The board is in active/standby operation mode. Go to 2.
Check whether the active board reports the alarm.
Y => The active board reports the alarm. Go to 3.

N => The standby board reports the alarm. Go to 4.
If the alarm is reported by the active board, a switchover between the active and standby boards will be automatically performed. If the standby board has a same- or higher-level alarm, the switchover fails, resulting in the persistence of the alarm within the active board. Clear the alarm of the standby board by adhering to relevant alarm-handling procedures, and then check whether the switchover between the active and standby boards is performed.
Y => The switchover succeeds. Go to 4.

N => The switchover fails. Please contact Huawei Customer Service Center.
Replace the standby board and wait until the board is successfully restarted. Check whether the alarm is cleared.
Y => The alarm is cleared. The alarm handling is complete.

N => The alarm persists. Please contact Huawei Customer Service Center.
Replace the board and wait until the board is successfully restarted. Check whether the alarm is cleared.
Y => The alarm is cleared. The alarm handling is complete.

N => The alarm persists. Please contact Huawei Customer Service Center.