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Updated on 2022-02-21 GMT+08:00
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Threshold Alarm

This section describes the management of thresholds. When managing site components, you can customize threshold alarms for some key counters. You can set multiple threshold ranges for the same counter based on the alarm severity, including critical, major, minor, and warning.

Prerequisites

You have the operation rights for Set Threshold Rules.

Context

  • You can set performance counter thresholds for certain components of NEs.
  • The thresholds can be set based on the alarm severity, including Critical, Major, Minor, and Warning.
  • After the threshold rule is set, the rule is enabled by default.
  • After the file is exported, you can edit rules locally. Multiple rules correspond to one alarm name. The rule upper or lower thresholds are displayed in one rule. If one rule corresponds to one alarm name, you are advised to copy and insert the current signal data. The rule upper or lower thresholds are displayed in two rules.

Procedure

  1. Choose Device Management > Alarm Management > Alarm Settings.
  2. In the navigation tree on the left, click the threshold alarm.
  3. In the device tree and select a target device, choose Real-Time Signals, Statistics Signals or Custom Signals.
  4. Click in the Operation column of the target data. The Set Rule dialog box is displayed.
  5. Set the alarm name.

    • If multiple rules correspond to one alarm name, enter Alarm Name.
    • If one rule corresponds to one alarm name. Click to enable the customized threshold setting.

  6. Select the threshold rule and set the rule parameters and duration. For details about parameters, see Table 2.
  7. Click OK.

    Table 1 Operations related to threshold rules

    Tasks

    Operation

    Clear a threshold rules
    Use either of the following methods to clear a threshold alarm:
    • Click for the counter whose threshold alarm needs to be cleared.
    • Select the counter whose threshold alarm needs to be cleared, and click Clear in the upper part of the page.

    Enable or disable a threshold rules
    Use either of the following methods to enable a threshold alarm:
    • Click or for the counter whose threshold alarm needs to be enabled.
    • Select the counter whose threshold alarm needs to be enabled, and click Enable or Disable in the upper part of the page.

    Customize threshold rules

    NOTE:

    You can custom threshold alarms only the Custom Signals tab page.
    1. Click Advanced and set Signal Name and Expression.
    2. Click Next.
    3. Set the alarm name.
      • If multiple rules correspond to one alarm name, enter Alarm Name.
      • If one rule corresponds to one alarm name. Click to enable the customized threshold setting.
    4. Select the threshold rule and set the rule parameters and duration. For details about parameters, see Table 2.
    5. Click OK.

    Deleting Customized Signals and Counters

    NOTE:

    You can delete a custom counter only the Custom Signals tab page.
    1. Delete a custom counter.
      • Click in the row that contains the custom counter to be deleted.
      • On the current page, select the custom counters to be deleted and click Clear in the upper part of the page.
    2. In the displayed dialog box, click OK.

    Batch Apply to Counters
    In the Threshold Alarm window, click in the Operation column for the target alarm in the active alarm list to apply the threshold conditions specified in the rule to other alarm rules with the same type of threshold condition.
    NOTE:

    Meaning of the same type of threshold condition:

    • If the threshold condition of a selected rule is of the numeric type, the rule can only be batch applied to the rules whose threshold condition is the numeric type.
    • If the threshold condition of a selected rule is of the enumerated type, the rule can only be batch applied to the rules whose threshold condition is the enumerated type.

    Batch Apply to Devices
    In the Threshold Alarm window, click Batch Apply to Devices below the active alarm list to apply the selected alarm rules to other devices in batches.
    NOTE:
    You can select either of the following options for batch application:
    • All objects: The rules are applied to all existing and future devices of the same type.
    • Custom: The rules are applied to devices of the same type under the current root node.

    Rules for applying an empty rule: for two devices of the same type, if the threshold condition content in a rule of one device is not set, and the rule is applied to the other device's rule for which the threshold condition content has been set, the threshold condition content set for the rule of the other device will be cleared.

    Exporting data
    1. Click Export.
    2. In the displayed dialog box, select export range and export data.
    3. Click OK.

    Importing data
    1. Click Import.
    2. In the displayed dialog box, click Upload.
    3. In the Upload dialog box, click the file to be uploaded.
    4. Select a local file and click OK.

    Refresh threshold alarms

    In the Threshold Alarm window, click Refresh in the upper part of the page to refresh threshold alarms.

    Table 2 Parameters for setting performance counter thresholds

    Parameter

    Description

    Alarm name

    Name of a threshold alarm. After Alarm name is selected, corresponding threshold alarms can be generated when performance counter measurement results meet alarm triggering conditions.

    You can set the alarm name as required.

    Upper Threshold for XX Alarm

    Upper threshold for a performance counter, which can be set as required. XX indicates the alarm severity. If the measured performance counter is greater than or equal to the upper-threshold, an alarm of the corresponding severity is generated.

    The value of this parameter must meet the following conditions:
    • The value for triggering an upper-threshold alarm is greater than that for clearing the upper-threshold alarm.
    • The value for triggering a high-level upper-threshold alarm is greater than that for triggering a low-level upper-threshold alarm.

    Lower Threshold for XX Alarm

    Lower threshold for a performance counter, which can be set as required. XX indicates the alarm severity. If the measured performance counter is less than or equal to the lower threshold, a lower-threshold alarm of the corresponding severity is generated.

    The value of this parameter must meet the following conditions:
    • The value for triggering a lower-threshold alarm is less than or equal to the one for clearing the lower-threshold alarm.
    • The value for triggering a high-level lower-threshold alarm is less than that for triggering a low-level lower-threshold alarm.

    Condition for Clearing Upper

    Threshold for clearing an upper-threshold alarm, which can be set as required. If the measured performance counter is less than or equal to this threshold, the upper-threshold alarm of the corresponding severity is cleared. The value for clearing an upper-threshold alarm must be less than or equal to the one for triggering the upper-threshold alarm.

    Condition for Clearing Lower

    Threshold for clearing a lower-threshold alarm, which can be set as required. If the measured performance counter is greater than or equal to this threshold, the lower-threshold alarm of the corresponding severity is cleared. The value for clearing a lower-threshold alarm must be greater than or equal to the one for triggering the lower-threshold alarm.

    Duration

    Duration refers to the time at which the threshold condition needs to be reached continuously for generating an alarm for a signal. If the value of a signal reaches the threshold condition continuously within that time specified by this parameter, a corresponding threshold alarm is generated. If the duration is 10s, the corresponding threshold alarm is generated when all signals reach the threshold within 10s.

Parent topic: Alarm Setting