20230 Loopback on the Optical Port

Description

The local equipment is in loopback mode, which means the services at this optical interface are disabled.

Attribute

Alarm ID Alarm Severity Alarm Type
20230 Minor Fault

Parameters

ID Name Meaning
1 Subrack No.

Subrack No.
2 Slot No.

Slot No.
3 Cpu No.

CPU No.
4 Optical Interface No.

Optical interface No.
5 Loopback Type

0=No loop,1=regenerator section line loop,2=regenerator section system loop
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

The services on this optical faulty are interrupted.

System Actions

None.

Possible Causes

Manually set the local link to any optical port loopback mode.

Procedure

  1. Check whether the optical port loopback test is being performed.

    Y => The optical port is normal.No handling is required.

    N => Go to 2.

  2. Stop the loopback of the alarm port to have the port operated in normal state. Check whether the alarm is cleared.

    Y => The alarm handling is complete.

    N => Please contact Huawei Customer Service Center.

Parent topic: BSC Alarm Reference
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