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Limiting logical interfaces. Physical Monitoring only



Hello, we have a large set of customers off of our switches with multiple logical interfaces going to each customer. The issue is we would like to monitor the physical and logical interfaces for throughput but we do not want to see an "alarm on disconnect" for logical interfaces. Is this possible without manually editing each logical interface sensor and changing the connection status handling? The reason we want this is because when a port goes to disconnect status we get a lot of alarming interfaces showing "down" and it is confusing to sort through. We only want physical interface alarms.

If you can't limit the alarming state then is there a way to limit the auto-discover for a device so that the physical interfaces only are imported?

ifType within the SNMP IF-MIB differentiates between the interface types very clearly. In other NMS such as Cacti, we can filter on ifType and set it to only be concerned with physical.

alarms disconnect filtering logical-interface physical-interface suppressing

Created on Jul 10, 2015 12:54:05 PM

1 Reply



Dear jmoore

PRTG has no option to differentiate those interface type. Disconnects however can be ignored. Please have a look at the traffic sensor options. Section Traffic Specific / Connection Status Handling has three options:

  • Show alarm for all "disconnected" states
  • Show alarm when disconnected, but ignore when deactivated
  • Ignore all "disconnected" states

Created on Jul 13, 2015 11:56:54 AM by  Arne Seifert [Paessler Support]

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