Summary
The need for higher bandwidths in long distance data transmission resulted in integrating the capabilities of LANs and WANs by creating a powerful data transmission mechanism called ATM. ATM networks are comprised of a number of switches that link computers to each other. However, a collection of ATM switches projects the illusion of one big ATM network in operation. ATM data transmission is similar to any other connection-oriented data transmission mechanism where a uniquely identifiable link needs to be established between communicating computers and each data unit is encapsulated into a final transmission unit. ATMs link computers by implementing PVCs or SVCs. Each PVC or SVC is uniquely identified by means of a VPI/VCI pair. This ...
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