Simone Mainardi wrote: > > I have this running now, so I can't try creating host pools unless I undo > those changes. > > > > One thing I've noticed with dynamic interfaces is that if I select one, then > click on the chart icon, the traffic peaks seem way too high. Eg 85Mbps when > we only have a 14Mbps link. > > Peaks you are seeing are very likely due to the quantized nature of flows. > Your netflow exporters do periodic exports of active flows -- say every 2 > minutes -- so the ntopng/nProbe pair is not able to know what happened > during the 2 minutes, it just receives the exported flow at the end of the > period. This translates into a potentially high volume of traffic in a very > short > period that determines the peak. However, total values over time must be > consistent.
That makes sense. I wonder if it would be helpful to add a note about that on the charts so that people understand their limitations. Does this mean I can still use those charts to look for periods of high usage, but should take the vertical scale with a grain of salt? Peter Shute _______________________________________________ Ntop mailing list Ntop@listgateway.unipi.it http://listgateway.unipi.it/mailman/listinfo/ntop
