HA primary election (FGCP) & override
the ordered tie-break that picks the primary unit in an FGCP cluster, and what the override flag changes
FGCP election order, override disabled (default): (1) most monitored ports up → (2) highest HA uptime → (3) highest device priority → (4) highest serial number.
Override enabled: priority jumps ahead of uptime — (1) monitored ports → (2) device priority → (3) HA uptime → (4) serial. That's how you pin a chosen unit as primary. HA uptime only counts once the gap exceeds ~5 minutes.