F5 LTM Monitoring Active/Standby status

Monitor F5 LTM Active/Standby status via SNMP:

Use SNMPWALK to get all instances of Cluster High Availability Status:

[nagios1]# snmpwalk -v 2c -c [community string] F5HOST1 F5-BIGIP-SYSTEM-MIB::sysClusterMbrHaState
F5-BIGIP-SYSTEM-MIB::sysClusterMbrHaState."default".1 = INTEGER: standby(3)
F5-BIGIP-SYSTEM-MIB::sysClusterMbrHaState."default".2 = INTEGER: unknown(0)
F5-BIGIP-SYSTEM-MIB::sysClusterMbrHaState."default".3 = INTEGER: unknown(0)
F5-BIGIP-SYSTEM-MIB::sysClusterMbrHaState."default".4 = INTEGER: unknown(0)

[nagios1]# snmpwalk -v 2c -c [community string] F5HOST2 F5-BIGIP-SYSTEM-MIB::sysClusterMbrHaState
F5-BIGIP-SYSTEM-MIB::sysClusterMbrHaState."default".1 = INTEGER: active(4)
F5-BIGIP-SYSTEM-MIB::sysClusterMbrHaState."default".2 = INTEGER: unknown(0)
F5-BIGIP-SYSTEM-MIB::sysClusterMbrHaState."default".3 = INTEGER: unknown(0)
F5-BIGIP-SYSTEM-MIB::sysClusterMbrHaState."default".4 = INTEGER: unknown(0)