I have a few devices where you can read in the event log that attributes of interfaces are set to NULL or another default value and with the next polling back to normal, examples:
2023-08-15 09:26:08 Te0/0/0/45 ifConnectorPresent: true → NULL
2023-08-15 09:26:08 Te0/0/0/45 ifSpeed: 10 Gbps → 4.29 Gbps
Next polling time:
2023-08-15 09:42:06 Te0/0/0/45 ifConnectorPresent: → true
2023-08-15 09:42:06 Te0/0/0/45 ifSpeed: 4.29 Gbps → 10 Gbps
This is triggering the alarm: Port utilisation over threshold because you see spikes of much more gigabits then normal. Also their are graphs with gaps. So it looks like polling is not going well at these times and in the polling graph you can see much higher polling time then normal.
I want to improve the polling but I am not sure how to do it. And how can I prevent that interface objects getting another value at bad polling or how can I prevent to trigger the Port utilisation alarm? Some exception for this alarm or so.
Please let me know if you can help.