With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
ptopoConnTabAgeouts
ptopo Connection Tab Ageouts
1.3.6.1.2.1.79.1.2.5
The number of times an entry has been deleted from the ptopoConnTable because the information timeliness interval for that entry has expired.
Back to PTOPO-MIB MIB page.
IPHost Network monitor allows you to monitor ptopoConnTabAgeouts 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.