With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cwrUpdateRate
Cisco Wireless Update Rate
1.3.6.1.4.1.9.9.136.1.7.1.1.8
This object represents rate at which snapshots of the histogram will be available.
Back to CISCO-WIRELESS-IF-MIB MIB page.
IPHost Network monitor allows you to monitor cwrUpdateRate 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.