Contents
1 Alarm Description
The alarm is raised when the number of messages that are discarded because of congestion at the Diameter transport layer exceeds a configured threshold value in a given time interval.
|
Alarm Cause |
Description |
Fault Reason |
Fault Location |
Impact |
|---|---|---|---|---|
|
Too high traffic at Diameter transport layer |
The number of messages that get discarded because of congestion exceeds a configured threshold value in a given time interval |
Congestion at Diameter transport layer |
Message loss |
2 Procedure
2.1 Handle Alarm vDicos, Diameter Link Congestion
Prerequisites
- This instruction references the following document:
- No tools are required.
- The following conditions must apply:
- The alarm is raised.
- An Ericsson Command-Line Interface session in exec mode is in progress.
Steps
- Navigate to the PmJob Managed Object (MO) indicated by alarm source attribute,
for example:
>ManagedElement=NODE06ST,SystemFunctions=1,Pm=1,PmJob=Dia_Cong_Thr_Job
- Check the value of attribute granularityPeriod:
(PmJob=Dia_Cong_Thr_Job)>show granularityPeriod
The following is an example output:
granularityPeriod=FIVE_MIN
- Wait up to the time of the Granularity Period for the alarm to be cleared automatically.
- Is the alarm cleared?
Yes: Proceed with Step 13.
No: Continue with the next step.
- Navigate to the PmThresholdMonitoring MO, for example:
(PmJob=Dia_Cong_Thr_Job)>MeasurementReader=1,PmThresholdMonitoring=1
- Check the values of attributes thresholdHigh and thresholdLow:
(PmThresholdMonitoring=1)>show
The following is an example output:
PmThresholdMonitoring=1 pmThresholdMonitoringId="1" thresholdHigh=1 thresholdLow=0 thresholdSeverity=MINOR
- Contact the network administrator to establish root cause
of the fault, for example network dimensioning, alarm threshold values,
or network configuration fault. Are the attributes thresholdHigh and thresholdLow set to correct values?
Yes: Proceed with Step 9.
No: Continue with the next step.
- Set appropriate values for attributes thresholdHigh and thresholdLow, for example:
(PmThresholdMonitoring=1)>config
(config-PmThresholdMonitoring=1)>thresholdHigh=2
(config-PmThresholdMonitoring=1)>commit
(config-PmThresholdMonitoring=1)>up
- Wait for the alarm to be cleared automatically after elapsing of two Granularity Periods.
- Is the alarm cleared?
Yes: Proceed with Step 13.
No: Continue with the next step.
- Perform data collection, refer to Data Collection Guideline.
- Contact the network administrator for further analysis.
- Job is completed.