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I would like to monitor our primary 10meg circuit to be alerted when it goes down as well as when th



Would just like to be notified when the primary circuit goes down and the backup circuit comes up.

interfaces prtg snmp

Created on May 15, 2012 5:56:48 PM

5 Replies



you need two sensors that monitor your two circuits and then use a sensor factory sensor wit the Define Sensor Status—status() Function


Created on May 16, 2012 9:14:47 AM by  Aurelio Lombardi [Paessler Support]



Sorry, looked over the doc but I dont get it , do you have a better example of this?

Thanks, Louis

Created on May 16, 2012 12:06:51 PM




you would need two sensors that show the status of your circuit. e.g . two http sensors that monitor an external website.

One of the sensors needs to use your normal Internet connection and would be green most of the time (would only turn red if your main Internet connection fails)

The other sensor would have to use your second internet connection and would be red for most of the time.

you can then use a sensor factory sensor and the status function with this definition

status(2031) NOT status(2044)

This will change the factory sensor to a Down status if the sensor with ID 2031 is Down , but the sensor with ID 2044 is not in a Down status. Otherwise the factory sensor will show an Up status.

where the sensor with the id 2031 would be the sensor monitoring your main connection and the sensor with the ID 2044 would be the sensor monitoring your second connection.

your sensor IDs would of course be different.

Created on May 18, 2012 11:49:30 AM by  Aurelio Lombardi [Paessler Support]



How do I tie the http monitor to an interface?

Created on May 18, 2012 12:09:04 PM



hallo, for one sensor you could use a proxy that you setup to use either your main circuit or the fail over, and the other sensor does not use the proxy.

Or you place one of the sensors on a remote probe that uses the second circuit as a gateway.

Created on May 23, 2012 11:47:54 AM by  Aurelio Lombardi [Paessler Support]

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