By default, the Interface/Port Flapping (Unstable) setting is not associated with backup interfaces or with dial-on-demand interfaces. This means, by default, that IP Availability Manager will not generate Unstable notifications for the interfaces in those groups.

To enable diagnosis of Unstable notifications for backup interfaces or dial-on-demand interfaces:

  1. Add the Interface/Port Flapping setting to the Backup or Dial-on-Demand groups.

  2. Configure the Interface/Port Flapping setting’s parameters accordingly.

  3. Reconfigure your Polling and Thresholds groups by using the Reconfigure toolbar button on the Domain Manager Administration Console.

    Combined settings and their notifications summarizes the notifications that may appear after you apply the Interface/Port Flapping setting to backup interfaces or dial-on-demand interfaces.

Table 1. Combined settings and their notifications

Settings

Resulting notifications

Interface/Port Flapping

Backup Interface Support

  • The Down notification is not generated if the interface is down.

  • The BackupActivated notification is generated if the interface comes up.

  • The ExceededMaximumUptime notification is generated if the interface stays up too long.

  • The Unstable notification is generated if the interface or port is going up and down.

Interface/Port Flapping

Dial-On-Demand Interface Support

  • The Down notification is not generated if the interface is down.

  • The ExceededMaximumUptime notification is generated if the interface stays up too long.

  • The Unstable notification is generated if the interface or port is going up and down.