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What is a Severity-based trap?

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ontap-9
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Applies to

ONTAP 9

Answer

Severity-based trap is a trap type that is issued in response to the severity of an EMS event that has raised. 

Note:

  • EMS has a trap type configured for each event. 
  • ONTAP has three trap types: Standard, Severity-based, and Built-in
    • Standard: Defined in the RFCs
    • Built-in:  NetApp Enterprise traps specific to events
    • Severity-based: Other than above
  • Severity-based traps are fired when an event matching the event filter setting occurs. 
  • The ONTAP system-defined filter default-trap-events has the following filter

Filter Name Rule     Rule      Message Name           SNMP Trap Type  Severity
            Position Type
----------- -------- --------- ---------------------- --------------- --------
default-trap-events
            1        include   *                      *               EMERGENCY, ALERT
            2        include   callhome.*             *               ERROR
            3        include   *                      Standard, Built-in
                                                                      *
            4        exclude   *                      *               *

  • This filter means:
  1. Exclude all events
  2. Include all EMERGENCY, ALERT events
  3. Include all ERROR events which start with callhome.
  4. include all  Standard, Built-in events
  • When a callhome.* event of ERROR severity, or an EMERGENCY or ALERT event is raised and the trap type is neither Standard nor Built-in,  EMS will notify by Severity-based trap according to the severity of each event raised.

Additional Information

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