Designing and Managing Behavior Models - Using Other Data Sources - NerveCenter's Built-In Triggers - SNMP Requests -
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SNMP Requests

NerveCenter retries SNMP requests as many times as configured or until a reply arrives on the SNMP or ICMP socket that NerveCenter can match to a pending request. (NerveCenter uses the number of retries and retry interval specified on the SNMP tab in the NerveCenter Administrator. Refer to the Managing NerveCenter guide or Administrator help for details.)

If the reply is an SNMP error, NerveCenter does not retry the request but returns three built-in triggers with the poll: an ERROR trigger, followed by an SNMP_ERROR trigger, and then finally the appropriate SNMP built-in error trigger. (See A List of Built-In Triggers, for more information.)

If NerveCenter receives no response after the configured number of retries, then NerveCenter fires two built-in triggers: ERROR, followed by SNMP_TIMEOUT. For more information about the order in which NerveCenter fires built-in triggers, see Built-in Trigger Firing Sequence.