We use 2x HP Procurve 8212zl core switches. We need to monitor all the active ports on these devices and be notified if a port goes offline, monitoring ping responses is not enough as every comms location has a resilient link so a ping will only fail if both core switches have a problem the edge switch is powered off or both fibers are cut/disconnected. When I do an auto discovery of the core switches using an SNMP traffic port scan as part of a device template it detects some ports that are not in use and are therefore not connected causing false notifications. Not all ports that are disconnected are detected. How can I change the discovery so that these ports are ignored unless they change to a connected state? I know it can be done if I add the sensor manually as PRTG lists the current connection state for all ports but I would like to be able to leave it to auto discover in case a new port is enabled/connected on the core switches and it is not added manually.