When WhatsUp Gold discovers devices, it tries to determine the type of each device so that it can monitor them appropriately. To determine a device type, WhatsUp Gold compares the discovered attributes of each device to a set of criteria called device roles.
Device roles do two things:
WhatsUp Gold provides default device roles that are used to identify most common network devices. If your network includes devices that are not identified by this default set, you can create custom device roles.