With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
ceDiagEventCount
Cisco Entity Diagnostics Event Count
1.3.6.1.4.1.9.9.350.1.8.2
This object specifies the number of entries currently stored in the event log buffer.
Back to CISCO-ENTITY-DIAG-MIB MIB page.
IPHost Network monitor allows you to monitor ceDiagEventCount on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco optical switches right now.