ATM header is ____________.
Asynchronous Transfer Modeheader is 5 byte. A telecommunications concept defined by ANSI standards for carriage of a complete range of user traffic, including voice, data, and video signals. Asynchronous Transfer Mode (ATM) in a nutshell, is a switching and multiplexing transmission protocol. It uses a variation of packet switching, that utilizes small and fixed packet sizes, called cells.