5.- Onw311060 Imanager U2000 V200r017 Alarm Management Issue 1.00.pdf

U2000 V200R017 Alarm Management www.huawei.com

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Objectives Upon completion of this course, you will be able to: 

Describe basic conceptions related to alarm management.



Perform basic alarm operations such as browse, query, statistic, synchronize current alarm and alarm logs



Set complicated alarm rules such as correlation, mask, redefine, remote notify, ADMC alarms and son on



Perform additional alarm settings such as monitoring threshold or KPI management, monitoring performance and signaling trace

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Page2

Contents 1. Alarm Management Overview 2. Basic Concept about Alarm

3. Basic Operations about Alarms 4. U2000 Alarm Settings

5. NE Alarm Settings

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Page3

Alarm Management Overview

⚫

A new display style named application style added on R15 and later version.

⚫

The difference between the two styles is only about the organization of the menus.

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Alarm Management ⚫

Alarm management involves 

Perform basic alarm operations such as browse, query, statistic, synchronize current alarm and alarm logs



Set complicated alarm rules such as correlation, mask, redefine, remote notify, ADMC alarms and son on



Perform additional alarm settings such as monitoring threshold or KPI management, monitoring performance and signaling trace

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Page5

Contents 1. Alarm Management Overview 2. Basic Concept about Alarms

3. Basic Operations about Alarms 4. U2000 Alarm Settings

5. NE Alarm Settings

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Page6

Alarm and Event ⚫

Alarm 

An alarm will appear on U2000 if a fault occurs on U2000 or some objects



Immediate operations must be done to correct the fault, or it will affect the normal running of U2000 or NEs



⚫

Users can acknowledge or clear an alarm or both

Event 

An event will appear on U2000 if the status of U2000 or an some objects changes, however, it may not affect U2000 services



⚫

Users can’t acknowledge or clear an event

Alarms of all NEs will report to U2000 automatically

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Page7

Alarm Severity ⚫

Critical If a critical alarm is generated, devices or resources may not work at all. Emergent

recovery is required ⚫

Major If a major alarm is generated, the service quality of devices or resources has been seriously affected. Quick measures are required

⚫

Minor If a minor alarm is generated, the service quality of devices or resources has been slightly affected. Proper handling or further observation is required in case that a serious fault

occurs ⚫

Warning If a warning alarm is generated, the service quality of devices or resources will be

potentially affected. Different measures should be taken for different errors Copyright © 2017 Huawei Technologies Co., Ltd. All rights reserved.

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Alarm Status ⚫

⚫

Four alarm statuses are provided as follows: 

Unacknowledged and uncleared



Acknowledged and uncleared



Unacknowledged and cleared



Acknowledged and cleared

Current alarm

Alarm status change

Life cycle

History alarm

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Page9

Alarm Acknowledge and Clear ⚫

Alarm acknowledge 



⚫

After being acknowledged, an

Alarm clear 

When the conditions for

alarm is to be or has already

triggering a fault alarm are

been handled

eliminated and the NE fault is

An acknowledged alarm can be

corrected, the NE reports a

switched to the

clearance alarm, then the fault

Unacknowledged state

alarm will be cleared 

The alarm can be manually cleared as well

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Page10

Alarm Storing ⚫

History Alarm: Acknowledged and cleared alarms.

⚫

Current Alarm: All alarms excepts history alarms

⚫

Alarm log: Refers to alarms received by the fault subsystem. Each alarm create an item in alarm log

⚫

Event log: Refers to events received by the fault subsystem. Each event create an item in event log

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Alarm Storing (Cont.) ⚫

History Alarm: Acknowledged and cleared alarms.

⚫

Current Alarm: All alarms excepts history alarms

⚫

Alarm log: Refers to alarms received by the fault subsystem. Each alarm create an item in alarm log

⚫

Event log: Refers to events received by the fault subsystem. Each event create an item in event log

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Page12

Questions ⚫

What status are the alarms classified into?

⚫

What is current and history alarm?

⚫

How many days can the acknowledged and cleared alarms store in the alarm list?

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Page13

Contents 1. Alarm Management Overview 2. Basic Concept about Alarms

3. Basic Operations about Alarms 4. U2000 Alarm Settings

5. NE Alarm Settings

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Page14

Contents 3.

Basic Operations about Alarms 3.1 Browsing Current Alarm

3.2 Perform Alarm Operations 3.3 Query Alarm or Event Logs 3.4 Query Alarm or Event Log Statistics 3.5 Display Alarm Panel 3.6 Alarm Check

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Browsing Current Alarms

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Browsing Current Alarms (Cont.)

Select an alarm or event source.

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Setting Column Headers on Browse Current Alarm ⚫

After you set column headers, information only on the set columns is displayed on the Browse Current Alarm tab page

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Viewing Detailed Alarm Information

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Browsing Current Alarms by Statuses

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Browsing Current Alarms by Severities

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Alarm Audible and Visual Display

Alarm panel

Alarm sound box

Topology view ⚫

The following can only receive fault alarms:   

⚫

Alarm panel Alarm sound box Topology view

Alarm information Alarm box

The alarm box can receive both fault alarms and event alarms simultaneously

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Page22

Contents 3.

Basic Operations on Alarms 3.1 Browsing Current Alarms

3.2 Performing Alarm Operations 3.3 Query Alarm or Event Logs 3.4 Query Alarm or Event Log Statistics 3.5 Displaying the Alarm Panel and Bar Chart 3.6 Alarm Check

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Page23

Locating Alarms in the Topology View

Physical Topo

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Page24

Manually Acknowledging Alarms ⚫

Acknowledge an alarm to identify that

it has been handled and no more concern is required

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Manually Clearing Alarms ⚫

You can manually clear an alarm when it cannot be automatically cleared or it does not exist on the NE

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Page26

Synchronizing Alarms ⚫

Alarms can be automatically or manually synchronized. 

Automatic synchronization ◼

When an NE connects to U2000, all alarms on the NE can be automatically synchronized to U2000

◼

Normally, all alarms are automatically synchronized to U2000 after you create an NE on U2000



Manual synchronization



The uncleared active alarms can be manually synchronized

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Page27

Manually Synchronizing NE Alarms

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Page28

Contents 3.

Basic Operations on Alarms 3.1 Browsing Current Alarms

3.2 Performing Alarm Operations 3.3 Query Alarm or Event Logs 3.4 Query Alarm or Event Log Statistics 3.5 Displaying the Alarm Panel and Bar Chart 3.6 Alarm Check

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Page29

Query Alarm Logs (Cont.)

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Query Event Logs

No clear time can be obtained for events.

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Page31

Query Event Logs (Cont.)

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Page32

Query Historical Alarm

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Page33

Contents 3.

Basic Operations on Alarms 3.1 Browsing Current Alarms

3.2 Performing Alarm Operations 3.3 Query Alarm or Event Logs 3.4 Query Alarm or Event Log Statistics 3.5 Displaying the Alarm Panel and Bar Chart 3.6 Alarm Check

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Page34

Collecting Statistics on Alarm Logs

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Page35

Collecting Statistics on Alarm Logs (Cont.)

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Page36

Collecting Statistics on Alarm Logs (Cont.)

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Page37

Collecting Statistics on Alarm Logs (Cont.)

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Page38

Contents 3.

Basic Operations on Alarms 3.1 Browsing Current Alarms

3.2 Performing Alarm Operations 3.3 Query Alarm or Event Logs 3.4 Query Alarm or Event Log Statistics 3.5 Displaying the Alarm Panel and Bar Chart 3.6 Alarm Check

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Page39

Displaying the Alarm Panel and Bar Chart

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Page40

Displaying the Alarm Panel and Bar Chart (Cont.)

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Page41

Query Alarm Bar Charts

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Page42

Contents 3.

Basic Operations on Alarms 3.1 Browsing Current Alarms

3.2 Performing Alarm Operations 3.3 Query Alarm or Event Logs 3.4 Query Alarm or Event Log Statistics 3.5 Displaying the Alarm Panel and Bar Chart 3.6 Alarm Check

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Page43

Alarm Check

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Page44

Questions ⚫

What types are the alarm synchronization classified into? What kind of NE are supported by each type?

⚫

Can all the alarms be obtained by one browse operation?

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Page45

Contents 1. Alarm Management Overview 2. Basic Concept about Alarms

3. Basic Operations about Alarms 4. U2000 Alarm Settings

5. NE Alarm Settings

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Page46

Automatically Acknowledging Alarms by Severities

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Page47

Automatically Acknowledging Alarms by Rules

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Page48

Managing Object Groups

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Page49

Managing Object Groups (Cont.)

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Managing Templates

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Page51

Managing Templates (Cont.)

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Page52

Setting Alarm Masking Rules

Alarm masking rules

U2000

NEs

Discarded alarms

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Page53

Setting Alarm Masking Rules (Cont.)

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Page54

Setting Alarm Masking Rules (Cont.)

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Page55

Setting Alarm Masking Rules (Cont.)

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Page56

Setting Alarm Redefinition Rules

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Page57

Setting Alarm/Event Remote Notifications ⚫

By email 

⚫

Alarm information is sent by an SMTP server

In short messages 

Alarm information is sent by a wireless Modem (such as GSM Modem or

CDMA Modem) or short message gateway

Email

Short message

Alarm information

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Page58

Setting Alarm/Event Remote Notifications (Cont.)

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Page59

Setting Communication Parameters

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Page60

Setting Communication Parameters (Cont.)

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Page61

Setting Communication Parameters (Cont.)

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Page62

Setting Alarm/Event Remote Notification Rules

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Page63

Setting Alarm/Event Remote Notification Rules (Cont.)

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Page64

Setting Alarm/Event Remote Notification Rules (Cont.)

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Page65

Transforming Events to ADMC Alarms

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Page66

Setting Alarm Lifecycles

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Page67

Setting Maintenance Mode Alarms

Query maintenance mode Set maintenance mode

Import Export Mode Definition

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Page68

Setting Maintenance Mode Alarms (Cont.)

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Page69

Filtering Maintenance Mode Alarms

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Page70

Query Maintenance Mode Alarms

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Page71

Alarm Correlation - Conception ⚫

Alarms or events are correlated to each other, so you can set correlation rules. After rules set, U2000 automatically processes alarms or events according to them to redefine their levels, Discard them or set them to correlative alarms

⚫

For an example: The high service memory usage alarm leads to two alarms: high memory usage alarm and high CPU usage alarm which is the root alarm leads to abnormal U2000 service exit alarm

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Page72

Alarm Correlation - Default Correlation ⚫

Correlation analysis involves two interfaces: Default Correlation and Correlation Analysis. The Default Correlation interface displays the alarm correlation rules defined by U2000. You can set whether to use these rules, but cannot modify them

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Page73

Alarm Correlation - Correlation Analysis ⚫

You can add, delete or check the property of all the correlation displayed in the window. The fields displayed in white can be changed, grey ones cannot be changed, pink ones are already changed but not in use. Click Apply to take the modifies into effect. The Apply button is available after a field is changed regardless of selection of a record

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Page74

Alarm Correlation - Set Correlation Rule

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Page75

Alarm Correlation - Set Correlation Rule (Cont.) A B

C

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Page76

Alarm Correlation - Set Correlation Rule (Cont.)

If there is only one alarm in the correlation rule, then Analysis duration parameter is invalid

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Page77

Alarm Correlation - Alarm/Event Frequency Analysis ⚫

In alarm/event frequency analysis, if the number of the same alarms/events generated during the preset time interval reaches the preset value, these alarms/events are considered to be correlated to each other, then after alarm/event frequency analysis rule set, U2000 processes the alarms/events according to the preset actions

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Page78

Alarm Correlation - Set Alarm/Event Frequency Rule ⚫

1

2

⚫

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If alarms/events meet the triggering condition in the left picture, which means: 

Their occurrence times within the Time segment



The number of them equal or greater than the Alarm count

Then U2000 will process the alarms/events according to the policy preset in the left picture

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Alarm Correlation - Acknowledged and Uncleared Alarm Time Analysis ⚫

If the acknowledged alarms are not cleared in the time segment, you can change the alarm severities through acknowledged and uncleared alarm analysis, which helps the maintenance personnel to pay attention to the alarms and handle them in time

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Page80

Alarm Correlation - Examples ⚫

Examples 

The correlation configuration of the MSC is as follows: ◼

The fault alarm whose alarm level is Major is E1/T1 Loss of Signal (ID=1101)

◼

The interval of the alarm is 10s

◼

The times of high frequency alarm is 10

◼

The alarms meeting the correlation rules are abandoned t2

t1 1

2

3

4

5

6

7

8

9

10 11

12

13

0

t T1

T2

T3

T4

T5

T6

T7

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T8

T9

T10

Page81

T11

T12

T13

Setting NE Alarm Log Synchronization Rules

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Page82

Alarm Reporting Process 1. An NE reports alarms to U2000. 2. Filter alarms.

3. Redefine alarm severities. 4. Perform alarm correlation analysis. 5. Save alarm information. 6. Send alarm notifications.

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Page83

Questions ⚫

What types are the alarm shield classified into? What are the differences?

⚫

What is ADMC? Can they be cleared?

⚫

What is the reason to set a alarm in maintenance mode?

⚫

How will the alarms which accord with the correlation rules be handled?

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Page84

Contents 1. Alarm Management Overview 2. Basic Concept about Alarms

3. Basic Operations about Alarms 4. U2000 Alarm Settings

5. NE Alarm Settings

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Page85

NE Alarm Settings

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Page86

Alarm Mask Rules

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Page87

Alarm Mask Rules (Cont.)

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Page88

Redefining NE Alarm Severities

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Page89

User-defined Alarms

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Page90

Binding User-defined Alarms

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Page91

Questions ⚫

what is the difference between the alarm severity redefining on NE side and on OSS side?

⚫

Can the masked alarms be seen on NE side once the NE alarm mask rule set?

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Page92

Summary 1. Alarm severity and status 2. Operation of alarms in U2000

3. Methods of setting U2000 alarms 4. NE Alarm Settings

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Page93

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