We have some network devices checked with SNMP every five minutes (because some of them struggled with replying minutely, I’m told).
The graphs below are from the same device. The CPU util graph is what I would expect (low resolution data), but the bandwidth chart shows spikes when the checks are happening.
The spikes seem to account for the whole five minutes of traffic, I assume because this is backed by a counter. The average figures seem correct, but obviously the maximums are five-fold wrong.
Is there a solution to this?