This is my first post in Icinga community.
I need to monitor some legacy devices in Icinga using SNMP (only method supported by device)
The vendor specific MIB OIDs (NOT IfTable) are real-time counters and I need to have the Interface delta usage, also want to generate alerts when over utilized.
Which plugin is best for this? I tried the snmp plugin but it just gives me an OID result back, I need to have delta calculated between current poll and the previous poll to get that interval utilization generate an alert if its above a threshold.
Also looked in to manubulon check_snmp_int.pl, but that one have the ifTable OIDs and other OIDs hard coded.
What is the best approach to get this done in Icinga2?
Do I have to write my own script to get this done? Does Icinga support such a custom plugin/script? If yes, how do I do it.?
Sorry lots of questions.