With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
zoneSetLastChange
zone Set Last Change
1.3.6.1.4.1.9.9.294.1.1.4.1.4
The value of sysUpTime at the time of the last change to this zone set entry. If the entry has not been modified since the last re-initialization of the local network management system, then this object will contain a zero value.
Back to CISCO-ZS-MIB MIB page.
IPHost Network monitor allows you to monitor zoneSetLastChange 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.