The Protocols view shows all protocols used on the network. If you know the protocol, then you can identify the application being used. Also, you can find unexpected or unwanted data.
Most network protocols conform to a multilayer protocol model.
You cannot simply show a protocol - you have to show a protocol at a layer in the protocol model. LANScan supports all layers, and you can switch back and forth to see different layers. In the example below, LANScan is displaying protocols at the Session layer Protocol names the protocol in use. LANScan uses common protocol names where possible - but for special protocols it will display 'Other' or the Protocol number. Current shows the data transmitted during the last sample period and Total displays all data transmitted since LANScan started or was reset.