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

SNMP Traffic sensor



Scenario: Network switch with many ports, some of them are already monitored by SNMP traffic sensor. Now a bunch of new ports goes online. With the current GUI of adding an SNMP traffic sensor you see which ports are connected or not connected, but you don't see, which ports already have a sensor placed on or not. So the customer has to manually check his documentation which ports are already covered by a sensor. Can we have another column in the "add sensor GUI" indicating that a sensor is already placed on the device? Deleting existing all sensors and adding all ports again is not a good option, as we will lose historical data. Would be a great help for customers with large switches when adding a large number of sensors.

prtg snmp snmptrafficsensor webgui

Created on Nov 7, 2018 9:52:11 AM by  mkoerber (2) 1

2 Replies



Please implement it as I have this use case.

Created on Nov 8, 2018 1:12:00 PM




Thank you for your KB-post.

I am afraid that for now there are no plans to implement this feature, sorry.

As a workaround, you can try the following: create a device template for SNMP Traffic Sensors that will add active interfaces and that will have connection status handling enabled by default.

If you have previously added sensors manually you will get duplicate traffic sensors. But auto-discovery itself can be run as often as needed and will not create duplicate sensors, it will only add newly activated/used interfaces. So you can schedule auto-discovery to run daily and to re-scan the device for new interfaces.

Best regards

Created on Nov 9, 2018 11:08:23 AM by  Isidora Jeremic [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.