Asynchronous Transfer Mode for Transmitting Information Essay

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ATM is called Asynchronous Transfer Mode. ATM is a networking technology which transmits information in the form fixed cells. The main vision behind designing ATM was integration of services and performance requirements of both telephony and data networking which was shortly called Broadband Integrated Service Vision (B-ISDN). This cell relay protocol was designed by ATM forum and was universally adopted by ITU-T. Usually the size of the fixed cells is about 53 bytes with 5 bytes for header and 48 bytes payload. When compared to the cell sizes used in the previous technologies, the size of an ATM is small. The smaller size of the ATM cells gives us a major advantage. ATM enables us to transmit video, audio and data over the same network …show more content…
ATM is called Asynchronous Transfer Mode. ATM is a networking technology which transmits information in the form fixed cells. The main vision behind designing ATM was integration of services and performance requirements of both telephony and data networking which was shortly called Broadband Integrated Service Vision (B-ISDN). This cell relay protocol was designed by ATM forum and was universally adopted by ITU-T. Usually the size of the fixed cells is about 53 bytes with 5 bytes for header and 48 bytes payload. When compared to the cell sizes used in the previous technologies, the size of an ATM is small. The smaller size of the ATM cells gives us a major advantage. ATM enables us to transmit video, audio and data over the same network and the small size of the ATM ensures that these data get delivered properly. Establishing a connection in ATM is similar to circuit switching. A message is first sent from the transmitter to the receiver to set up a connection. Subsequently all cells follow the same path to the destination. The connection that is set up in this process is not a physical connection but virtual circuits. ATM is designed in such a way that it can handle constant rate traffic and variable rate traffic. Hence it can handle multiple types of traffic with an end-to-end quality of service. Some of the key concepts in ATM were fixed packet sizes that allowed faster switching, Small packet size, Statistical multiplexing, Integrated services, Good Management and
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