20372 GE Interface Unit Fault

Description

GE interface unit-POS3 interface is faulty.

Attribute

Alarm ID	Alarm Severity	Alarm Type
20372	Minor	Fault

Parameters

ID	Name	Meaning
1	Subrack No.	Subrack No.
2	Slot No.	Slot No.
3	Cpu No.	CPU No.
4	POS3 Port No.	0=POS3 port connected with the 7th slot GSCU,1=POS3 port connected with the 6th slot GSCU
5	Fault Type	Fault type
6	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".

Impact on the System

If one port is faulty, the service performance between the GSCU and the service board decreases.
If two ports are faulty, the service between the GSCU and the service board is interrupted.

System Actions

If the other link is normal, an automatic handover is performed to a normal link.

Possible Causes

The GSCU is reset.
The board is not securely inserted.
The GSCU corresponded to the faulty port is not securely inserted.
The hardware of the board is faulty.
The hardware of the GSCU is faulty.
The backplane is faulty.

Procedure

Check whether a correlated parent alarm occurs.
Y=> Clear the parent alarm according to the corresponding handling suggestions. Check whether the alarm is cleared.

N=> Go to 2.

Correlated parent alarm

20129 Faulty GE Link on the Backplane of transaction board

The parent alarm and the child alarm have the same Subrack No. and Slot No. in the alarm location information.

The Link No. in the alarm location information of the parent alarm is the same as the POS3 No. in the alarm location information of the child alarm.
Check whether the GSCU is reset.
Y => The GSCU is reset. The alarm is cleared once the board is reset and started. The alarm handling is complete.

N => The GSCU is not reset. Go to 3.
Secure the board and check whether the alarm is cleared.
Y => The alarm is cleared. The alarm handling is complete.

N => The alarm persists. Go to 4.
Secure the GSCU which corresponds to the faulty port of the board and check whether the alarm is cleared.
Y => The alarm is cleared. The alarm handling is complete.

N => The alarm persists. Go to 5.
Replace the faulty 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. Go to 6.
Replace the GSCU which corresponds to the faulty P0S3 port 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.