• Connected - Those devices which are connected to a WiFi network.
• Visitors - Clients associated with AP in a site are classified as visitors at the site.
• Passerby - whether a client device is found in the site or is just a passer-by and not connected to a site. Passerby when connected to a site for more than "x" minutes (default 5 min) are converted into visitors.
• Probing - When a mobile device is connecting to a WiFi network (connecting state), In this case AP will capture the MAC address of your device.
Also please go through the following links to get more information on CMX cloud and its features