Link integrity test options and failover

When you configure failover, you must select a test type option, which is used to verify link integrity for failover.

Note For details about each option, see Link integrity test options.

Choose Ping, TCP Connection, or DNS Lookup

For these methods, when the device fails over from the primary to the secondary hostname, the device continues to monitor the primary hostname. If a connection to the primary hostname is established, the device disconnects from the secondary hostname and re-connects to the primary hostname.

Choose Device Cloud

For the Device Cloud method, the device only switches between hostnames if the currently active hostname becomes unresponsive.