With IPHost Network Monitor you can run simple snmp requests against a F5 Network device in your network.
poolMaxConn
pool Max Connection
1.3.6.1.4.1.3375.1.1.7.2.1.13
The maximum number of connections the members of this pool have had open at any one time.
Back to LOAD-BAL-SYSTEM-MIB MIB page.
IPHost Network monitor allows you to monitor poolMaxConn 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.