With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cderNotificationsSent
CISCO DEVICE EXCEPTION REPORTING Notifications Sent
1.3.6.1.4.1.9.9.224.1.1.3
The number of cderMonitoredExceptionEvent events. If a NMS is receiving notifications, it can periodically poll this object to find out if any notifications were missed. In that case it could poll cderExceptionTable to find out missing exceptions.
Back to CISCO-DEVICE-EXCEPTION-REPORTING-MIB MIB page.
IPHost Network monitor allows you to monitor cderNotificationsSent on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco multiplexers right now.