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Wrong vertical scale percentage




I am using a Netflow 5 custom sensor on a Cisco routers, but it seems that the bandwidth usage indication on the vertical scale is about 50 times off. Where it says it is using 700kbit/s, it should be about 35 Mbit/s. Is there any way to correct this?

I have got a number of Netflow 5 custom sensors running on other routers, and these work fine.

Kind Regards,

Stijn Mahieu

netflow prtg snmp

Created on Jun 13, 2014 9:33:12 AM

1 Reply



Dear Stijn

The scaling is done by using the maximum value. In some races, a device can return a wrong value and distort the graph. To fix this, please enable a spike filter: https://www.paessler.com/blog/2013/04/02/prtg/how-to-filter-spikes-from-graphs-in-prtg

Please go to the sensor, and then click on its channel. Then the sensor configuration opens. If you enable the Spike Filter, you can set minimum and maximum values. If the value exceeds the maximum, it is considered zero for the graph rendering purpose. It can take a short time before the change is reflected in the graphs.

Please note that traffic sensors often have sum channels, like "Total". Only the actual data channels (for example "Traffic In" and "Traffic Out") can have a spike filter applied.

Created on Jun 16, 2014 1:18:02 PM by  Arne Seifert [Paessler Support]

Last change on Jun 16, 2014 1:19:08 PM by  Arne Seifert [Paessler Support]

Disclaimer: The information in the Paessler Knowledge Base comes without warranty of any kind. Use at your own risk. Before applying any instructions please exercise proper system administrator housekeeping. You must make sure that a proper backup of all your data is available.