SNMP traps are defined in either standard Management Information Base (MIB) files or enterprise-specific MIBs.
Each private enterprise on the MIB tree has a unique number that is preceded by the numbers of its parent nodes. IANA assigned CA, Inc. the private enterprise number 791. All data sent in SNMP traps by any CA application is associated with object IDs that begin with 1.3.6.1.4.1.791. The CA User Activity Reporting Module application that belongs to CA has 9845 as its identifier. All SNMP trap data sent by CA User Activity Reporting Module action alerts is associated with object IDs (OIDs) beginning with 1.3.6.1.4.1.791.9845.
CA User Activity Reporting Module provides one MIB file. The name of this MIB is CA-ELM.MIB. This MIB defines all the fields that can be sent by action alerts with one trap. That trap includes all CEG fields available in CA User Activity Reporting Module.
When an action alert is sent to an SNMP trap destination, the data that is sent includes a URL. The individual monitoring incoming traps can browse the URL sent by the action alert. Browsing the URL launches a CA User Activity Reporting Module page that displays query results in an easy to read format. This functionality makes the use of MIBs to interpret data sent as SNMP traps unnecessary.
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