With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cwrTlUpdateTime
Cisco Wireless Tl Update Time
1.3.6.1.4.1.9.9.136.1.8.3.1.1
This object represents the time in seconds since power up when this timeline capture was completed.
Back to CISCO-WIRELESS-IF-MIB MIB page.
IPHost Network monitor allows you to monitor cwrTlUpdateTime on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco optical switches right now.