What is this?

This knowledgebase contains questions and answers about PRTG Network Monitor and network monitoring in general.

Learn more

PRTG Network Monitor

Intuitive to Use. Easy to manage.
More than 500,000 users rely on Paessler PRTG every day. Find out how you can reduce cost, increase QoS and ease planning, as well.

Free Download

Top Tags

View all Tags

Graph shows odd SNMP value.



We have Cisco-C2960S with a 10G uplink. Our normal usage is between 1000 Mbps to 2000 Mbps depending on the time of day. Occasionally SNMP Traffic sensor graph shows odd value of up to 4000 Mbps. This should not be possible this is a VPN tunnel that can only go up to 2000 Mbps. In fact I saw it happen on every Cisco-C2960S switch we have deployed.

I'm trying to understand if PRTG for some reason interprets values coming for Cisco the wrong way or our Cisco has an issue with values it sends.

cisco prtg snmp-traffic

Created on Aug 1, 2014 6:09:51 PM

1 Reply



Could you please either post or mail us (to [email protected]) a screenshot of a 30 day graph showing these peaks?

Created on Aug 4, 2014 9:13:46 AM by  Patrick Hutter [Paessler Support] (7,225) 3 3

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.