On Mon, 26 Feb 2018 10:03:51 +0100 Karl Gerhard karl_gerh@gmx.at wrote:
apologies for the late reply, the flu season is terrible this year.
I hope this message finds you well :)
I have verified that the 5min jobs are running at the correct intervals and that we're using SNMP v2c everywhere. I checked everything that was suggested in "Debugging gaps in graphs" article and I'm looking for advice as to how to proceed further.
You seem to describe a situation where only some interfaces on some devices have gaps, and none of the issues described in the debugging guide apply.
At this point, I'd grab a swiss army knife: I'd use tcpdump and/or wireshark to verify a couple of things:
1. Does ipdevpoll actually consistently post the traffic counter values of these interfaces to the carbon backend? (UDP port 2003).
2. If not, does ipdevpoll consistently query and get a response for the SNMP traffic counters for these interfaces (UDP port 161).
Are you able to do this without further guidance?