2.nm oc01 e2 1 fault management(v4)-63

Fault Management

ZTE University

Content

Basic ConceptsHow to query fault alarmsHow to filter fault alarmsHow to check a fault informationHow to create a fault reportFunction Enhancement from U9.1 to U9.3Troubleshooting Case Analysis

Overview

Fault Management z The fault management functions consist of querying faults, locating

faults quickly, isolating and recovering faulty points, and forwarding maintenance information to related users in time.

Main Contentsz Fault Detectionz Fault Acknowledgementz Fault Diagnosis

Eventsz Alarmz Notification

Classification of Alarms

Processing Alarm Quality of Service Alarm Environmental Alarm Equipment Alarm Communication Alarm

Severity Levels of Alarms

Critical Alarm Major Alarm Minor Alarm Warning

Critical

Four Statuses of Alarms

Unacknowledged, Uncleared

Acknowledged, Uncleared

Unacknowledged, Cleared

Acknowledged, Cleared

Clear

Clear

AcknowledgementUn-acknowledge Un-acknowledge Acknowledgement

Active Alarm History Alarm

Alarm Management Functions (1) Alarm Collection Alarm Processing

z Alarm Filteringz Alarm Synchronizationz Alarm Delayz Correlation Analysisz Redefinition of Severity Level

Alarm Displayz Alarm Monitoring Interfacesz Rack Mapz Topology Management z Alarm Boxz Alarm Forwarding

Alarm Query and Count

Customized Alarm Filtering

Global Alarm Filtering

Alarm Filtering Before Putting Alarms into the Database

Alarm MaskingNE

EMS Server

Client A Client B

Alarm Management Functions (2) Correlation Analysis

z Alarm Suppression When an alarm with high severity level occurs, only this major alarm is

reported while the lower-level alarms related to this alarm are not reported.

z Alarm Timing It is used for defining the action when an alarm exists for a long time,

for example, changing the alarm to a higher severity level or generating a new alarm.

z Alarm Merging The alarms of the same type merge into one alarm, which is reported

as a representative. z Alarm Counting

A new user-defined alarm is generated when the count of the same alarm occuring during a unit time reaches the specified value.

Alarm Management Functions (3)

Alarm Forwarding Destinationsz NMSz SMSz Emailz Alarm Box

Software Alarm Box Hardware Alarm Box

Content


Fault Monitoring

Alarm Monitoring

Fault Monitoring

Alarm Export

Fault Monitoring

Notification Monitoring

Fault Monitoring

Monitor Alarms by NE

Fault Monitoring

Monitor Alarms by NE type

Fault Query

Query Active Alarms-Location

Fault Query

Query Active Alarms-Alarm Code

Fault Query

Query Active Alarms-Probable Cause

Fault Query

Query Active Alarms-Time

Fault Query

Query Active Alarms-Others

Fault Query

Query Active Alarms-Result and Save query

Fault Query

Query Active Alarms-Save query condition

Fault Query

Query Active Alarms-Save query condition

Fault Query

Custom Query Export query result

Content


Fault Filtering Rule

Fault Setting-Rules Setting


Fault Setting-Alarm Filter Rule : Basic


Fault Setting-Alarm Filter Rule : Condition


Fault Setting-Alarm Filter Rule : Result

Fault Filtering Rule Type and Valid RangeAlarm Rule Valid Range Storage in

DatabaseTransfer viaNorthboundInterface

Alarm acknowledge-ment rule

Global validityForward validity

Yes Yes

Alarm clearance rule Global validityForward validity

Yes Yes

Alarm filter rule Set valid for all user or creatorDisplay filter: Backward validityRestrain filter :Forward validity

Yes(Set display filter)

Yes(Set display filter)

Alarm delay rule Global validityForward validity

Yes Yes

Alarm merging rule Global validityForward validity

Yes Yes

Alarm duration rule Global validityForward validity

Yes Yes

Fault Filtering Rule Type and Valid RangeAlarm Rule Valid Range Storage in

DatabaseTransfer viaNorthboundInterface

Alarm count rule Global validityForward validity

Yes Yes

Alarm forwarding rule Global validityForward validity

Yes Yes

Alarm mask rule Global validityForward validity

No No

Alarm restrain rule Global validityForward validity

Yes Yes

Alarm trigger script rule

Global validityForward validity

Yes Yes

Notification filter rule Global validityForward validity

No No

Content


Details of an alarm

Select an alarm from Fault Monitoring

Details of an alarm

Double click the alarm

Details of an alarm

Handling Suggestions

Content


Fault Report

Time Report Task Management

Fault Report

Time Report Task Management

Fault Report

Timing Report Alarm Task-Basic

Fault Report

Timing Report Alarm Task-Condition

Fault Report

Timing Report Alarm Task-Condition

Fault Report

Timing Report Alarm Task-Result

Fault Report

Timing Report Alarm Task-Result

Txt Type Xls Type

Content


New Function: Quick Query & Custom Query

New Function: Alarm Monitoring by NE or NE Type

New Function: Support Alarm Code Filtering

New VersionOld Version

New Function: Support Alarm Time Filtering

Raised Time ACK Time

Range fromto Latest N days Before N days

New Function: Support Alarm Filtering by Type/Severity/NE IP

New Function: Support Alarm Filtering by Severity/ACK State

Old Version

New Version

New Function: Support Alarm Filtering by Alarm Code

Old Version

New Version

Enhanced Function: Re-organized Main Menu

New VersionOld Version

Enhanced Function: Alarm Status Report

New Version

Old Version

Enhanced Function: VIP Site Monitoring

Pay more attention to VIP site. Pay more attention to high RUP area

Content


Case1: NetNumen M31 receives fewer alarms than the OMM. 1) Check whether the NetNumen M31 has set the

rule for shielding the alarms. 2) If the lower-level OMM version is

womcrv3.17.310, the OMM will not report the following 3 types of alarms to the NetNumen M31.z Alarm code 16000: the foreground version is not

compatible with the background version.z 16001: the NodeB type is in error.z 16002: the foreground version is not compatible with the

background version and the NodeB type is in error. 3) The alarm for performance data delay on the

OMM is not reported to the NetNumen M31.

Case2: The alarms on the OMM and the NetNumen M31 are incorrect.Some NodeB and cells are abnormal, but the NMS doesn't show any alarm for that. Check whether the NMS has set the alarm rules.If the

NMS has set related rules for shielding or filtering the alarm, the alarm will not be displayed.

Check whether the NodeB has set the rule for debugging.If the NodeB is in the debugging status, the alarms of the NodeB and the cells will not be reported in real-time manner.

Case3: The alarm is recovered, but the NMS says the alarm cannot get recovered automatically.

Check whether the NMS has just been updated to the new version.z If the NMS has just been updated to the new version,

you need to manually clear off the original alarms on the NMS and get the foreground and background alarms synchronized.

z If the NMS version has not been updated just now, you need to report the problem to the R&D engineer for fault locating.

Case4: The time of the alarm query is beyond the range set on the client. Check whether the time zone setting of the client

is consistent with that of the server.

Case5: The time of the alarm query is beyond the range set on the client. Check whether the time zone setting of the client

is consistent with that of the server.

2.nm oc01 e2 1 fault management(v4)-63

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