ATM / Asynchronous Transfer Mode for Not Yet Techies

"Computer Careers: Using Dedicated Line Switching Technology"

by Richard Stooker, President Info Ring Press and author of Secrets of Changing to a Computer Career

ATM stands for Asynchronous Transfer Mode and is a dedicated connection switching technology. Most commercial Frame Relay networks use ATM / Asynchronous Transfer Mode. It organizes data into 53-byte cell units.

ATM / Asynchronous Transfer Mode gets it name because those 53-byte cells are processed asynchronously and is put in a line before being sent over the transmission path.

It is good at traffic management and quality of service. Designed for hardware rather than software, faster processing and switch speeds are possible than with other networks. ATM / Asynchronous Transfer Mode speeds can reach as high as 10 Gbps. Therefore, it works best for large enterprises on private networks.

ATM / Asynchronous Transfer Mode is a key component of Synchronous Optic Network and of broadband ISDN

It uses a lot of protocols from the telephone industry.

The standards body for it is ITU-T -- International Telecommunications Union - Telecommunications. This began when funded by the UN in 1948.

It uses UNI (User Network Interface) for simultaneous transfer of voice, data and video -- the signaling protocol for controlling its services.

ATM / Asynchronous Transfer Mode is a cell-based, switching and multiplexing technology designed to be a general purpose, connection oriented transfer mode for services.

Next: CICS

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