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snmptrafficsensor peaks out



We have some Moxa Insutrial Switches which I monitor with the snmptrafficsensor. Usualy the Traffic on this Switches is very low, just some kbit's But once a day I have a peak of 2 billions (10^12) in under one minute

where could be the problem of this? Its just a problem of the Switch? or can this be a problem of prtg or snmp? thanks Tobias

peak prtg snmp-traffic-sensors

Created on Dec 20, 2018 9:27:31 AM

2 Replies



  • Did you determine the incoming and outgoing interface on your switch?
  • Did you start monitoring the incoming/outgoing devices - their network cards?
  • Did you check what services or processes might cause this traffic on those devices?

From what you mention you talk about traffic in general - SNMP and PRTG just show you how much data flows - the reason is normally something else - that's actually exactly why you should engage PRTG and SNMP to monitor this.


Florian Rossmark


Created on Dec 20, 2018 2:32:55 PM



Dear Tobias,

the value could be a result of a volume counter overflow. Please open the Setting tab of the device object in PRTG, open the SNMP Compatibility Options, and check how the overflow handling is configured.

Created on Dec 20, 2018 3:17:49 PM by  Arne Seifert [Paessler Support]

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