Contents
1 Introduction
This instruction concerns alarm handling.
1.1 Alarm Description
This alarm is issued when total query error rate exceeds the given threshold.
The possible alarm causes and the corresponding fault reasons, fault locations and impacts are described in Table 1.
|
Alarm Cause |
Description |
Fault Reason |
Fault Location |
Impact |
Solution |
|---|---|---|---|---|---|
|
ENUM query error |
DNS, ENUM, and ERH total query error rate exceeds the given threshold. |
The NAPTR request (excluding the EMUN request for Number Portability ) has format error or name error. For example, if the query is below an equipped ENUM zone, however the specific domain name is not provisioned in the database, the name error occurs. The MySQL NDB Cluster is down. |
ENUM query failure |
Refer to ENUM, Query Failure Error. | |
|
Failed to forward query to DNS server |
DNS cannot be queried; or there is DNS provisioning error on the zone, view, etc. Forwarding time-out. Abnormal query messages are received, or DNS works abnormally. |
DNS server |
Refer to DNS, Query Failure Error. | ||
|
Failed to forward query to ERH |
Configuration of SPC and SSN are incorrect. |
Refer to the section Actions for Checking ERH and SS7 Stack in ERH, NP Query Error and ERH, Toll-free Query Error. |
- Note:
- An alarm can appear as a result of the maintenance activity.
The alarm attributes are listed and explained in Table 2.
|
Attribute Name |
Attribute Value |
|---|---|
|
Major Type |
193 |
|
Minor Type |
856068 |
|
Managed Object Class |
IpworksEnumPm |
|
Source |
ManagedElement=<Node Name>,SystemFunctions=1,Pm=1,PmJob=<PM job name, default job is ENUMTPSDefaultJob>,MeasurementReader=<name>:<hostname> |
|
Specific Problem |
ENUM, Total Query Failure Error |
|
Event Type |
qualityOfServiceAlarm(11) |
|
Probable Cause |
x733ThresholdCrossed(351) |
|
Additional Text |
The alarm is raised when query failures (including ENUM, DNS and ERH) exceed a configured limit (threshold) on expiration of a configured time interval. |
|
Perceived Severity |
Warning |
1.2 Prerequisites
This section provides information on the documents, tools, and conditions that apply to the procedure.
1.2.1 Documents
This instruction references the following document:
1.2.2 Tools
Not applicable.
1.2.3 Conditions
No conditions.