21301 Communication link fault

Description

Communication link fault between two cpu in the XPU borad.

Attribute

Alarm ID Alarm Severity Alarm Type
21301 Major Fault

Parameters

ID Name Meaning
1 Subrack No.

Number of the subrack where the alarm is generated

2 Slot No.

Number of the subrack where the board is located

3 CPU No.

Number of the faulty CPU in a board

4 Link Type

0=Q922,1=UOIP

5 Target CPU No.

Target CPU No.

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

Communication fault between two nodes.

System Actions

Reset board.

Possible Causes

MAC layer communication fault.

Procedure


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