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08/11/2010 / craigmartinallen

ATM Technology, What Is?

ATM is a switched, connection-oriented networking technology that provides dedicated, high-speed connections to virtually an unlimited number of users. It operates on a cell-based fast-packet communication method that supports transfer rates from 1.544 Mbps to 10 Gbps.
Dedicated media connections running in parallel allow an ATM switch to simultaneously support multiple conversations, eliminating the bandwidth contention and data bottlenecks found on shared-media networks such as Ethernet, Token Ring and FDDI.
When Data is transferred in an ATM network, a switched virtual circuit (SVC) is established between the sender and receiver. The information is converted into fixed-length cells, which are transmitted through the network and reassembled into data packets at the destination.
ATM relies on the reliability of digital lines to ensure data integrity and does not use error-correction protocols. Numerous transmissions can take place at once, enabling ATM to accommodate multiple dialogues quickly, easily and reliably.
ATM’s dedicated bandwidth is capable of easily supporting data-intensive applications such as high-resolution computer graphics, large data-base management systems and high-end engineering packages. The technology’s high throughput and real-time information delivery also make it a perfect solution for emerging multimedia applications combining data, voice and animation.


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