20028 Faulty Packet Switching Unit

Description

The packet switch unit is faulty.

Alarm ID	Alarm Severity	Alarm Type
20028	Major	Fault

ID	Name	Meaning
1	Subrack No.	Subrack No.
2	Slot No.	Slot No.
3	Cpu No.	CPU No.
4	Logical chip No.	0=Packet switch unit
5	First 32-bit information	The first 32 bit status information of packet switch unit
6	Last 32-bit information	The second 32 bit status information of packet switch unit
7	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".

The service carried on this board might be interrupted.

Reset the board.

Faulty packet switching unit.

After the board is automatically reset, 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. Go to 2.
Replace the board that reports the alarm 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.