With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
ccStatusTimeOfLastChange
Cisco Cluster Status Time Of Last Change
1.3.6.1.4.1.9.9.134.1.1.6
The value of sysUpTime on the command switch when the last time the value of an instance of ccMemberOperStatus changed. The value 0 indicates that no member's status has ever changed since commander system initialization.
Back to CISCO-CLUSTER-MIB MIB page.
IPHost Network monitor allows you to monitor ccStatusTimeOfLastChange 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.