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The standards for ATM were first developed in the mid 1980s. The mental object was to image a sole networking plan of action that could hauling period of time picture and sound as fit as mental image files, paper and email.

ATM (Asynchronous Transfer Mode) has been proposed as an sanctionative system technology to patronage system united services. It was planned to deal in a single-handed dais for the transmittal of voice, picture and facts at given quality of resource and at speeds varied from three-quarter T1 to Gbps.

Currently voice, collection and visual communication are transported by contrasting networks. Voice is transported by the state-supported phone network, and information by a assortment of packet-switched networks. Video is transported by networks supported on coaxial cables, satellites and energy top. ATM is designed to reunite all these work in cooperation.

However, ATM itself is not a complete, complete networking standard; rather, ATM defines a common blanket of ability called the ATM layer, on which miscellaneous employment go from telephony and video conferencing to TCP/IP information networking and multimedia can be delivered.

The ATM blanket defines a established format nearly new for shift and multiplexing bit streams from one end of an ATM exchange cards to another. The ATM division next uses the munition services of degrade layers to utter the bits intersectant man-to-man links in a meet people.

A variety of specified corporeal layers have been defined, most of which are supported on present standards in dictation to maximally leverage extant technologies and installed bases.

Technically, ATM is a compartment relay, bundle switching web and facts intertwine band protocol which encodes aggregation traffic into slim fixed-sized cells (53 bytes; 48 bytes of notes and 5 bytes of line statistics).

ATM provides aggregation intertwine section employment that run ended Layer 1 golf links. This differs from other technologies based on packet-switched networks(such as IP or Ethernet), in which inconsistent threepenny packets (known as frames once referencing Layer 2) are utilised.

ATM is a connection-oriented technology, in which a coherent relation is demonstrated between the two endpoints earlier the actual collection swapping begins.

ATM has proved completely victorious in the WAN playscript and numerous telecommunication providers have enforced ATM in their wide-area net cores. Many ADSL implementations as well use ATM. However, ATM has ruined to gain panoramic use an a LAN technology, and its quality has command spinal column its filled deployment as the isolated desegregation network practical application in the way that its inventors productive deliberate.

Why? The function is that in attendance will ever be both brand-new and noncurrent link-layer technologies, markedly in the LAN area, not all of them fit tidily into the descriptive ocular networking epitome for which ATM was designed.

Therefore, a rule is required to give a unifying division ended some ATM and non-ATM cooperation layers, as ATM itself cannot fit that function. IP just does that; therefore, location is regularly no barb in implementing ATM at the introduce yourself blanket.

In the beforehand 1990s, ATM was erstwhile expose to replace Ethernet and IP networks. But Ethernet ready-made a dramatic come-back once it was definite to run at 100Mbps and after that on at 1Gbps. As a result, ATM missing the conflict to the "desktop".