Real-Time Bandwidth Monitor

bbeachy2001

I use the Real-Time Bandwidth monitor and love it, but on some interfaces, it gives me pretty ugly graphs.  Below, for instance, is the port on my Palo Alto that has my internet link.  Currently the traffic is in the grey area.  So, why does it have the continuous data points at zero, followed by a huge spike, then either two or three accurate data points, then repeat?

Is there a way I can get it to not show those spikes up and down?

mesverrum

The tooltip in red is giving you a clue, not all device manufacturers make it so their SNMP counters actually update at a high speed.  From the look of this you are very close to the speed at which the PA refreshes the data, but every ~5th poll you hit them too soon, which gives you a dip and then the next poll you get basically 2 polls worth of byte counts.

I don't know what polling interval you have set for those palo altos, but I would suggest slowing down the poll rate by maybe 10-15% and I bet that smooths the charts out fine for you.