Contents
1 Alarm Description
The threshold alarm CSCF Credit Control Answers Indicate End User Service Denied is raised when the server denies the service request because of service restrictions.
The alarm is associated to the Performance Management counter cscfCCAEndUserServiceDenied.
The alarm is raised when the number of received Diameter Credit Control Answer messages, including the error code DIAMETER_END_USER_SERVICE_DENIED, has reached or exceeded its configured thresholdHigh within the time period configured by thresholdRateOfVariation and granularityPeriod.
The alarm is automatically ceased when it reaches or goes below the configured thresholdLow value.
The default values related to this alarm are: thresholdRateOfVariation=PER_GP, granularityPeriod=FIVE_MIN, thresholdHigh=2, and thresholdLow=0. This means that when the counter value is 2 or higher, the alarm is raised when the Granularity Period is ended. The alarm is ceased when the counter cscfCCAEndUserServiceDenied has reached a value of 0 at the end of a Granularity Period.
- Note:
- The thresholds for raising and ceasing this alarm are configurable.
The default Distinguished Name for the thresholds is: ManagedElement=<node_name>, SystemFunctions=1, Pm=1,
PmJob=CscfChargingStatisticsThreshold, MeasurementReader=cscfCCAEndUserServiceDeniedMeasReader,
PmThresholdMonitoring=cscfCCAEndUserServiceDenied.
It is not possible to change threshold values once they have been set. To change a threshold, first the PmThresholdMonitoring instance must be deleted and recreated with required thresholdHigh and thresholdLow.
For more information, refer to Performance Management.
|
Alarm Cause |
Description |
Fault Reason |
Fault Location |
Impact |
|---|---|---|---|---|
|
The PM counter cscfCCAEndUserServiceDenied has reached or exceeded its configured upper threshold value. |
The number of Credit Control Answers (CCA) with a transient failure where the server denies the service request because of service restrictions during a Granularity Period have reached or exceeded the configured threshold. |
Charging Server denies the service request. This can, for example, be because of faulty subscriber configuration. |
The subscriber provisioning or configuration is not correct. |
Sessions receiving this error code from the Charging Server is terminated. |
|
Attribute Name |
Attribute Value |
|---|---|
|
Major Type |
193 |
|
Minor Type |
6684683 |
|
Managed Object Class |
MeasurementReader |
|
Managed Object Instance |
ManagedElement=<node_name>,SystemFunctions=1, Pm=1, PmJob=CscfChargingStatisticsThreshold, MeasurementReader=cscfCCAEndUserServiceDeniedMeasReader |
|
Specific Problem |
CSCF Credit Control Answers Indicate End User Service Denied |
|
Event Type |
communication (2) |
|
Probable Cause |
x733ThresholdCrossed (351) |
|
Additional Text |
cscfCCAEndUserServiceDenied, the credit control server denies the request because of service restrictions. |
|
Perceived Severity |
major (4) |
2 Procedure
2.1 Handle Alarm CSCF Credit Control Answers Indicate End User Service Denied
Prerequisites
- This instruction references the following documents:
- No tools are required.
- The following condition must apply:
- The alarm is raised.
Steps
- Note:
- If the reason for the alarm has disappeared after the Granularity Period, the alarm automatically ceases.
- Find the reason why the credit control server denies the user service request because of service restrictions.
- Is the alarm threshold is set too low?
Yes: Adjust the alarm threshold and then continue with the next step.
No: Continue with the next step.
- Has the alarm ceased?
Yes: Proceed with Step 5.
No: Continue with the next step.
- If the alarm is not ceased, consult the next level of
maintenance support.
Further actions are outside the scope of this instruction.
- Job is completed.