Event correlation is the process of relating one event to other events.
Prime Collaboration distinguishes two event relationship types:
An event sequence. Events that have the same type and the same source are considered part of an event sequence, or an alarm. An alarm represents the complete lifecycle of a fault.
An event sequence hierarchy (alarms), representing causality.
Prime Collaboration associates a new event to an existing alarm if the existing alarm has the same event type and source as the new event.
Prime Collaboration raises an alarm, if the number of related events received (by fault management system) from the device element exceeds a specified threshold in a specified unit of time, based on predefined correlation rules.
Example use cases:
Call Manager location goes out-of-resource for more than five times over the last one hour.
CPU usage of a device is over 80% for the last 15 minutes.
You can modify these rules and configure the number of event occurrences to set the trigger. This can vary from two to 100. You can also set the time interval. You can modify these rules at
Administration > Alarm & Event Configuration > Rules Settings.
If an administrator does not specify a time interval, maximum time period, or a count for a specific alarm, the default values for the time interval, maximum time period, and count is attached on an alarm, device type, or device class basis.