Creating and Managing Triggers

  1. In the navigation pane, go to Monitor > Triggers.

  2. Select a tenant from the drop-down list and click Proceed.

    _images/trigger.png
  3. Select Triggers from the top-panel and click Add a Trigger on top-right of Trigger page. The Add Trigger dialog opens.

    _images/add_trigger.png
  4. In the Trigger Name box, specify name of a trigger.

  5. From the Category drop-down, select of the following trigger category—SYSTEM, APP SERVICE, or INFRASTRUCTURE.

  6. From the Sub Category drop-down, select the sub-category.

  7. From the Object Type drop-down, select the Object type. For each category and sub-category associated objects which are available are listed in the table below:

    Category
    Sub Category
    Object
    System
    Health Monitor
    HMON
    System
    Networking
    IPV6
    L3
    Router
    System
    Others
    Auth
    Fail-Safe
    System
    Service Modules
    CFGMGR
    Compression
    GSLB Protocol
    WAF
    Service Operation
    System
    Service Operation
    ACOS
    HA
    System
    VCS
    App Service
    CGNv6
    Pool
    Ports
    Technology DSLite
    Technology FixedNAT
    Technology NAT44
    Technology NAT64
    App Service
    FW
    FW Global
    Rule
    Rule Set
    App Service
    SLB
    HTTP protocol
    HTTP2 protocol
    L4 Protocols
    Server
    Server Port
    Service Group
    vPort
    Infrastructure
    Cluster Device
    Resource
    Traffic
    Infrastructure
    Partition Logical Cluster
    Resource
    Traffic
  8. Under Trigger on (Metrics), select Numeric or String depending on whether to Trigger on numerical metrics or metrics of string data type. There are only two types of metrics and what type of tests can be done on them depends on the data type. If you choose Numeric metrics to set the trigger, the Window Type and Window Size options become available.

  9. Under Window Type, select one of the following options:
    • Sliding: The threshold condition is checked every every minute. For example, 12:00, 12:01, 12:02, and so on.

    • Step: The threshold condition is checked in steps as defined under Window Size. For example, if you set Window Size to 5 minutes, the condition is checked at 12.00, 12:05, 12:10, and so on.

  10. Under Window Size, specify the number of samples or minutes that would form the step. A window is a time period over which a time series data samples are taken. Aggregate functions such as MAX or AVG can be applied to that period.

    Table below describes and provides information on window type, size and sample selection.

    Window type
    Window Size
    Description
    sliding
    time
    Calculation on metrics for event generation is based on time in a sliding manner.
    sliding
    sample
    Calculation on metrics for event generation is based on number of events in a sliding manner.
    step
    time
    Calculation on metrics for event generation is based on time in a batch manner.
    step
    sample
    Calculation on metrics for event generation is based on number of events in a batch manner.
  11. Configure threshold Condition.

    _images/trigger_threshold.png
    • Metric: Select one or more metrics. They have to be of the data type selected earlier. The form will only show the metrics that are of the selected data type.

    • Vector Function: If multiple metrics are selected the user has the option of selecting Expression and write the expression as a series of formulas, or not use an Expression and rather use a set of built-in expressions. only SUM expression is supported.

    • Threshold: If user wants to enter their own expressions. They need to toggle the slider and add the expression texts.

    • Smoothening Function: Define a function such as Avg, Max, or Min that needs to be calculated over the window to check against a specified threshold.

    • Unit: Select a unit from the drop-down. The unit or Measured Unit applies to the calculation or threshold.

    • Display Units: Select a display unit of the value that is displayed in Alert logs and emails. For example, display unit is used to convert ratios or 0-100 numbers into percentages for display.

    • Add to another Condition: If required, add multiple conditions. Click the AND command and select OR if required. After setting the second condition to AND or OR, any additional conditions that you add are set to AND or OR, respectively.

    • Trigger Message: By default, a trigger message is added based on the selection. You can modify the message by typing in the window. You can add hints on potential root causes if needed

  12. Click Save. A new trigger is added. This trigger condition will be available when you define Alerts.

Cloning Triggers

  1. In the navigation pane, go to Monitor > Triggers.

  2. Select a tenant from the drop-down list and click Proceed.

    _images/trigger.png
  3. To clone the trigger, select Triggers from the top-panel, select image_reference and click Clone.

    _images/duplicate.png

Tip

To delete the trigger, select image_reference and click Delete.