snmptrapd will allow snmp traps to be sent to splunk, but polling snmp tables will require a poller. Net-Snmp scripts will work, however I have found integrating Splunk with NerveCenter to be a better more flexible and efficient way to accomplish this. With NerveCenter I can poll the data and format/massage the data easily before sending to splunk. An example to to poll if tables and use NerveCenter to calculate the deltas from the counters and then calculate the % of bandwidth usage to be logged to Splunk. I can also use NerveCenter to apply logic to polled data for alerting. See www.logmatrix.com for more details on NerveCenter.
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