FG300D HA failover

Hi

it depends which option you have: 'override disabled' or 'override enabled'. You can check it here:

show system ha

With 'override disabled' (default mode) the order is:

1) number of monitored interfaces

2) HA uptime (the difference between peers must be higher than 5 minute to use this one, below 5 minutes is treated as the same value)

3) priority

4) serial number

With 'override enabled' :

1) number of monitored interfaces

2) priority

3) HA uptime (the difference between peers must be higher than 5 minute to use this one, below 5 minutes is treated as the same value)

4) serial number

With the 1st option to trigger failover you reset the HA uptime (on the active one) and with the 2nd you must change priority (higher value is preferred).

You should stay with default settings (override disabled). It's more stable version and requires less planning. You may prefer 'override enabled' with virtual-clustering in active-passive mode.