With IPHost Network Monitor you can run simple snmp requests against a F5 Network device in your network.
lbDnsServIfFctryCount
lb Dns Serv If Fctry Count
1.3.6.1.4.1.3375.1.2.1.1.5.3.1.2
The number of factories of the type corresponding to this row of the table.
Back to F5-3DNS-MIB MIB page.
IPHost Network monitor allows you to monitor lbDnsServIfFctryCount 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.
