Defining an alert is a process that begins with identifying the need for an alert, and then goes on to defining alert settings and arranging for the alert message to be sent to the correct audience. It is useful to follow a top-level procedure to ensure that all the required steps have been followed.
This topic applies to NAM releases earlier than release 2018. For help with the configuration wizard, available starting in NAM 2018, see Alert configuration wizard.
Before you begin
You need the following:
- NAM (AMD, CAS, RUM Console) installed.
- Familiarity with NAM and basic monitoring concepts.
- Default ports available for communications between the individual NAM components.
- If you intend to send alert notifications via e-mail, a user with report server administrator privileges who must configure the server to use an existing SMTP server. For more information, see Reporting and alerting.
Defining an alert
Identify a business need for the alert.
See Alert System.
In the RUM Console, use the Alert management system to start creating a new alert definition.
All NAM alert management starts with the Alert management screen.
Configure the detector settings.
For more information, see Configuring trigger conditions for alerts.
You will need to:
- Choose the dimensions and metrics you want to monitor and to which the alert should be applied.
- Define the conditions in which the alert should be triggered.
Optional: Define alert output filters.
These are additional conditions you can set on alert output fields, so that only alerts satisfying these conditions are raised.
For more information, see Specifying output filters and Filter syntax.
Optional: Modify default propagation characteristics.
By default, an alert is raised after 1 monitoring interval during which the triggering conditions are fulfilled, but you can change this as needed.
For more information, see Modifying alert propagation settings.
Optional: Configure an alert notification.
You can define an alert message template and enable the notifications for selected recipients. Otherwise, your alert will only be reported in the logs.
For more information, see Alert notifications.
Review and publish the definition on the devices.
Reviewing the alert summary