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Event Class

Describes the value of an incoming event in the system and also the place to store its settings.


  • Name (Name) - the name of the event class. It must be unique and uses category notation separated by |
  • Text (Text) - a block of settings for the text description of the event
    • Description (Description) - a brief description
    • Subject Template (Subject Template) - the event title template displayed in the interface.
    • Body Template (Body template) - the event body template displayed when viewing the event
    • Symptoms (Symptoms) - description of possible symptoms that triggered the event
    • Probable Causes (Probable Cause) - possible causes
    • Recommended Actions (Recommended Actions) - actions to take to resolve the event
  • Action - system actions with the event
    • Action (Action)
      • Drop - stop processing the event
      • Log - Continue processing and save in events
      • Archive - Continue processing and move to archived events
    • Link Event (Link Event)
  • Variables (Vars) - variables used in the event
    • Name (Name) - variable name
    • Type (Type) - variable type
    • Required (Required) - the variable must be filled in
    • Match Suppress (Match Suppress) - the variable is used in suppression detection
    • Description (Description) - a brief explanation
  • Disposition (Disposition) - event processing rules, processed sequentially until the end or a stop (Stop) pointer is set
    • Name (Name) - name, must be unique
    • Condition (Condition) - condition for applying disposition
    • Action (Action) - actions when applied
      • drop - delete the event and stop processing
      • ignore - ignore the line
      • raise - send the event for processing to the correlator to create an alarm
      • clear - send the event for processing to the correlator to close the alarm
    • Alarm Class (Alarm Class) - Alarm class (applies to raise and clear actions)
    • Stop (Stop) - Stop processing when set
    • Managed Object (Managed Object) - Python expression for denoting the device (ManagedObject)
    • Vars Mapping (Vars Mapping)
  • Suppression (Suppression) - event suppression settings
    • Deduplication Window (Deduplication Window)
    • Suppression Window (Suppression Window)
    • Time To Live (TTL)
  • Handlers (Handlers) - a list of handlers Handler for execution
  • Plugins (Plugins) - a list of plugins not used

Description of Operation

Event class settings affect the operation of the classifier, and are assigned based on classification rules Classification Rule. If no suitable rule is found, default rules are triggered, or the class Unknown | Default is assigned:

  • Unknown | Syslog - assigned to events based on Syslog for which no suitable rule is found
  • Unknown | SNMP Trap - assigned to events based on SNMP Trap for which no suitable rule is found
  • Unknown | Default - assigned to events if no match with any of the rules is achieved.

The event's time to live (TTL) allows you to avoid cluttering the database with unnecessary data. However, if the event has been forwarded for further processing, such as becoming an alarm, the TTL action is canceled.

Naming Conventions

In the naming of event classes, categories are used with the | symbol: <category1> | <category2> | <category3>, and a separate category is allocated for each manufacturer, where specific classes for that manufacturer are recorded.