PRTG factory sensor allow us to create a special sensor with data driven from other sensors.
I want to calculate (sum) all incoming/outgoing traffic from all Cisco ASA physical interfaces.
Here are the steps:
1. Write down all interfaces sensor ID, it’s listed on the overview tab:
2. Choose the correct channel ID for traffic in, out or total and write down the channel ID number (0,-1,1)
3. Add new sensor to the device and choose Sensor Factory:
4. Type the following formula with the values you have collected in step 1 and 2:
The sensor I have just created in this example will calculate sum of traffic out (channel ID value is 1) for all 3 sensors (2558, 2560 and 2550).
There are many operators and formulas we can use for creating factory sensors, for more information: http://www.paessler.com/manuals/prtg9/sensor_factory_sensor