With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
ciscoDlswUpTime
cisco Data Link Switching Up Time
1.3.6.1.4.1.9.10.9.1.1.6
The time (in hundredths of a second) since the DLSw portion of the system was last re-initialized. That is, if dciscoDlswtate is in the active state, the time the ciscoDlswState entered the active state. It will remain zero if ciscoDlswState is in the inactive state.
Back to CISCO-DLSW-MIB MIB page.
IPHost Network monitor allows you to monitor ciscoDlswUpTime on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco mobile switches right now.