Which action will take place when a failover trigger is detected by the active system.

The active device evaluates the detected failure against its configured failover actions and executes the action defined for that trigger, such as initiating a failover to the standby device. This design allows administrators to customize behavior per trigger type rather than applying a single universal response.

The standby device does not independently detect the failure and assume the active role on its own; the active device initiates the failover process based on its configured action.

The active device does not wait for connections to drain before failing over; the configured action is executed immediately when the trigger is detected.

BIG-IP HA does not split processing so that only specific failed virtual servers move to the standby while the active continues; the entire active role transfers to the standby device.