With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cOutageHistTableSize
Cisco Outage Hist Table Size
1.3.6.1.4.1.9.9.280.1.2.1
The upper limit on the number of entries that the cOutageHistoryTable may contain.
Back to CISCO-OUTAGE-MONITOR-MIB MIB page.
IPHost Network monitor allows you to monitor cOutageHistTableSize 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.