CollectD / Interface dropped packets

Support
1

**NethServer Version: 7.6
**Module: collectd
NS as guest on HyperV

Hi,

while I was searching for the reason why my green intercase shows regular high spikes in dropped packets I noticed that there could be something wrong with the scaling.

In the 2hour view I see regular spikes at 80m pps. In the 8 hour view I see in the same timeframe only 14m pps. Same in the day view.
ethtool -S eth1 does not list any dropped packets.

The red interface looks completely different, here it is a constant line of only 2 pps. (not 2m!)

Two questions:

  1. is there a bug in the y-axis scale?
  2. where/how can I search on the command line to see if I really have an issue and to fix it.

Any idea?
Thanks
Thomas

dp1

dp2
dp2.png751×368 120 KB

dp3
dp3.png758×387 72.7 KB

2

Can’t say I ever noticed the scale issue, but I have always wondered about the regularity of the dropped packets. Every 16 minutes:

image

Cheers.