With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
ceAlarmHistTableSize
Cisco Entity Alarm History Table Size
1.3.6.1.4.1.9.9.138.1.3.1
This object specifies the number of entries that the ceAlarmHistTable can contain. When a physical entity generates an unfiltered alarm, and the capacity of the ceAlarmHistTable has reached the value specified by this object, then the agent deletes the oldest entity in order to accommodate the new entry. A value of '0' prevents any history from being retained.
Back to CISCO-ENTITY-ALARM-MIB MIB page.
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