With IPHost Network Monitor you can run simple snmp requests against a F5 Network device in your network.
hostVServDisabled
host V Serv Disabled
1.3.6.1.4.1.3375.1.2.1.1.4.4.1.10
Is this virtual server disabled. If a virtual server is disabled it is considered unavailable for load balancing by 3DNS.
Back to F5-3DNS-MIB MIB page.
IPHost Network monitor allows you to monitor hostVServDisabled on F5 Network device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring F5 Network ADC chassis right now.