I have several SNMP OIDs that monitor a number of connected devices. These devices are managed, not client devices and therefore a static number.
I made a sensor factory that kept track of the number of missing devices, but because sensor factories cannot be saved in templates, it is not optimal.
I am looking for a solution that keeps track of the maximum value of a sensor or channel with static values. As soon as the sensor or channel drops below the maximum, the sensor or channel goes into a down or error state. This way I can hopefully save the sensor in a template and apply it to other devices.