With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
ccsFlapCreateTime
Cisco Cable Spectrum Flap Create Time
1.3.6.1.4.1.9.9.114.1.1.5.1.11
The time that this entry was added to the table. If an entry is removed and then later re-added, there may be a discontinuity in the counters associated with this entry. This timestamp can be used to detect those discontinuities.
Back to CISCO-CABLE-SPECTRUM-MIB MIB page.
IPHost Network monitor allows you to monitor ccsFlapCreateTime on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco firewalls right now.