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Fat AP and Cloud AP V200R008C00 CLI-based Configuration Guide

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Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
Configuring Fault Management

Configuring Fault Management

Configuring Alarm Management

Alarm management includes setting alarm severities, alarm correlation suppression, and enabling alarm reporting delay.

Pre-configuration Tasks

Alarm management includes setting alarm severities, alarm correlation suppression, and enabling alarm reporting delay.

Before configuring alarm management, power on the device and ensuring a successful self-check.

Setting the Alarm Severity

Context

The system defines default alarm severity for each alarm. Users can change the alarm severity. When receiving alarms reported by a device, the NMS can configure filtering rules to display only alarms of a specified severity.

As defined in X.733, alarms are classified into six severities, as described in Table 5-16. A small value indicates a higher severity.

Table 5-16  Descriptions of alarm severities

Value

Severity

Description

1

Critical

Indicates that a fault affecting services has occurred and it must be rectified immediately.

2

Major

Indicates that services are being affected and related measures need to be taken urgently.

3

Minor

Indicates that a fault occurs but does not affect services. To avoid a minor alarm from getting severer, related measures must be immediately taken.

4

Warning

Indicates that a potential or impending service-affecting fault is detected before any significant effects have been felt. Take corrective actions to diagnose and rectify the fault.

5

Indeterminate

Indicates that the severity of an alarm cannot be determined.

6

Cleared

Indicates that one or more previous alarms have been cleared.

Procedure

  1. Run:

    system-view

    The system view is displayed.

  2. Run:

    alarm

    The alarm view is displayed.

  3. (Optional) Run:

    display alarm information [ name alarm-name ]

    The alarm severity is displayed.

  4. Run:

    alarm-name alarm-name severity severity

    The alarm severity is changed.

    The system has defined default alarm severity for each alarm.

Configuring the Alarm Reporting Delay Function

Context

When an alarm is reported repeatedly, users cannot locate faults in an efficient manner. After the alarm reporting delay function is enabled and the delay is configured, a large number of invalid alarms are prevented from being reported.

After the alarm reporting delay function is enabled,

  • If no clear alarm is generated during the period, the alarm is reported to the NMS when the period expires.
  • If a clear alarm is generated during this period, the alarm and its clear alarm are both deleted from the alarm queue and will not be reported to the NMS.

Procedure

  1. Run:

    system-view

    The system view is displayed.

  2. Run:

    alarm

    The alarm view is displayed.

  3. Run:

    delay-suppression enable

    The alarm reporting delay function is enabled.

    By default, the alarm reporting delay function is enabled.

  4. (Optional) Run:

    display alarm information [ name alarm-name ]

    The delay in reporting alarms is displayed.

  5. Run:

    suppression alarm-name alarm-name { cause-period cause-seconds | clear-period clear-seconds }

    The period after which a generated alarm is reported is set.

    After such a period is set for an alarm, there are the following situations:

    • If no recovery alarm is generated during the period, the alarm is not reported to the NMS until the period expires.
    • If a recovery alarm is generated during this period, the alarm and its recovery alarm are both deleted from the alarm queue and will not be reported to the NMS.

    You can use the parameter cause-period cause-seconds to set the period after which a generated alarm is reported.

    You can use the parameter clear-period clear-seconds to set the period after which a generated recovery alarm is reported.

Configuring Alarm Correlation Suppression

Context

Before configuring alarm correlation suppression, enable alarm correlation analysis to analyze alarm types including root-cause and non-root-cause. For a non-root-cause alarm, the system marks the sequence number of its root-cause alarm on the non-root-cause alarm. After alarm correlation suppression is configured, the system filters out non-root-cause alarms and reports only root-cause alarms to the NMS.

Procedure

  1. Run:

    system-view

    The system view is displayed.

  2. Run:

    alarm

    The alarm view is displayed.

  3. Run:

    correlation-analyze enable

    Alarm correlation analysis is enabled.

    By default, alarm correlation analysis is disabled.

  4. Run the following commands to configure NMS-based or interface-based alarm correlation suppression.

    NOTE:

    You can configure one or both of NMS-based and interface-based alarm correlation suppression functions.

    • Configuring NMS-based alarm correlation suppression

      1. Run:

        quit

        The system view is displayed.

      2. Run:

        alarm correlation-suppress enable target-host ip-address securityname securityname
        

        Alarm correlation suppression based on the NMS IPv4 address is enabled.

    • Configuring interface-based alarm correlation suppression

      Run:

      mask interface interface-type interface-number

      Interface-based alarm correlation suppression is enabled.

      By default, interface-based alarm correlation suppression is disabled.

      NOTE:

      After interface-based alarm correlation suppression is configured, root-cause and non-root-cause LinkDown alarms generated on the interface are not reported to the NMS.

Checking the Configuration

Context

  • Run the display alarm information [ name alarm-name ] command to view the specified alarm configuration.

  • Run the display this command in the alarm view to view the alarm configuration.

Configuring the Event Reporting Delay Function

Context

After the event reporting delay function is enabled and the period of delay is configured, the system discards the event that is generated several times during the delay. When the delay expires, the system reports the only first event.

Pre-configuration Tasks

Before configuring the event reporting delay function, power on the device and ensuring a successful self-check.

Procedure

  1. Run:

    system-view

    The system view is displayed.

  2. Run:

    event

    The event view is displayed.

  3. Run:

    delay-suppression enable

    The event reporting delay function is enabled.

    By default, the event reporting delay function is enabled.

  4. (Optional) Run:

    display event information [ name event-name ]

    The period of delay in reporting events is displayed.

  5. (Optional) Run:

    suppression event-name event-name period seconds

    The period of delay in reporting events is configured.

    The system has defined a default period of delay in reporting events.

    NOTE:

    Run the undo suppression event-name and display event information commands in sequence to view the default period of reporting delay.

Checking the Configuration
  • Run the display event information [ name event-name ] command to view the event configuration.

  • Run the display this command in the event view to view the event configuration.

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Updated: 2019-01-11

Document ID: EDOC1000176006

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