With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
ciscoMaxSessionsGroup
cisco Max Sessions Group
1.3.6.1.4.1.9.9.33.3.2.2
A collection of objects providing the information on the maximum number of sessions supported on a CMCC card.
Back to CISCO-CIPCSNA-MIB MIB page.
IPHost Network monitor allows you to monitor ciscoMaxSessionsGroup on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco wireless switches right now.