20409 Quality of GE Link on GSCU Backplane Decrease

Description

The quality of the GE link on the backplane of the GSCU decreases.

Attribute

Alarm ID Alarm Severity Alarm Type
20409 Minor Fault

Parameters

ID Name Meaning
1 Subrack No.

Subrack No.
2 Slot No.

Slot No.
3 Cpu No.

CPU No.
4 Backplane GE link No.

No. of the GE link on the backplane
5 Corresponding Slot No.

Number of the slot on the backplane corresponding to the faulty link
6 Parameter

Alarm parameter
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".

Impact on the System

The service performance between the GSCU and the service board decreases.

System Actions

None

Possible Causes

  • The peer board is not securely inserted.
  • The hardware of the peer board is faulty.
  • The local board is not securely inserted.
  • The hardware of the local board is faulty.
  • The hardware of the backplane is faulty.

Procedure

  1. Secure the peer service board and check whether the alarm is cleared.

    Y => An alarm is generated. Go to 2.

    N => The alarm is cleared. The alarm handling is complete.

  2. Secure the local board and check whether the alarm is cleared.

    Y => An alarm is generated. Go to 3.

    N => The alarm is cleared. The alarm handling is complete.

  3. Reset the peer service board. After the board is restarted successfully, check whether the alarm is cleared.

    Y => The alarm is cleared. The alarm handling is complete.

    N =>The alarm is not cleared. Go to 4.

  4. Reset the local board. After the board is restarted successfully, check whether the alarm is cleared.

    Y => The alarm is cleared. The alarm handling is complete.

    N => The alarm is not cleared. Go to 5.

  5. Replace the peer service board. After the board is restarted successfully, check whether the alarm is cleared.

    Y => The alarm is cleared. The alarm handling is complete.

    N => The alarm is not cleared. Go to 6.

  6. Replace the board. After the board is restarted successfully, check whether the alarm is cleared.

    Y => The alarm is cleared. The alarm handling is complete.

    N => The alarm is not cleared. Please contact Huawei Customer Service Center.

Parent topic: BSC Alarm Reference
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