With IPHost Network Monitor you can run simple snmp requests against a Fortinet device in your network.
fnHaPriority
fn Ha Priority
1.3.6.1.4.1.12356.1.100.2
HA clustering priority (default - 127)
Back to FORTINET-MIB-280 MIB page.
IPHost Network monitor allows you to monitor fnHaPriority on Fortinet device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Fortinet WAN extenders right now.
