With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cwrTlNumDataValues
Cisco Wireless Tl Num Data Values
1.3.6.1.4.1.9.9.136.1.8.2.1.5
This object indicates the number of data values to be captured for this timeline. The captured data can be viewed by reading the cwrTlDataTable.
Back to CISCO-WIRELESS-IF-MIB MIB page.
IPHost Network monitor allows you to monitor cwrTlNumDataValues on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco switches right now.