With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
ccrSwitchLastSwitchoverReason
Cisco Catalyst 8540 switch Switch Last Switch over Reason
1.3.6.1.4.1.9.9.105.1.2.3
The reason for the last switch card switchover. The value is none(1) if there was no switchover since agent initialization.
Back to CISCO-C8500-REDUNDANCY-MIB MIB page.
IPHost Network monitor allows you to monitor ccrSwitchLastSwitchoverReason 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.