An increasing number of customers require LAN access with high bandwidth and low delay over long distances. To satisfy these needs, several high-speed network techniques have been developed recently. ATM is superior compared to other networking technologies, as it offers high bandwidth and is scalable in the sense that the bandwidth capacity of an ATM system is not fundamentally limited to the technology itself. Nail Kavaklthough emerging high bandwidth multimedia applications a r e one of the major driving forces behind the B-ISDN initiative, its success or failure largely s on how well currently used data communication applications and protocols can be supported in these networks. This article analyzes architectures and protocols specifically designed for providing data communication services in ATM LANs and ATM wide area networks. Current trends and activities within standard bodies and forums are outlined, the merits and weaknesses of various solutions are given, and the issues that still need to be addressed are discussed.An increasing number of customers require LAN access with high bandwidth and low delay over long distances. To satisfy these needs, several high-speed network techniques have been developed recently, offering data rates up to hundreds of Mb/s. Typical examples are FDDI, Frame relay, Fast Ethernet, Ether switch, and, most recently, Asynchronous Transfer Mode (ATM), all of which a r e designed to satisfy connectivity requirements emerging from current LAN, as well as high-speed workstations in order to run powerful distributed multimedia applications.Much interest has been expressed in ATM, due t o its flexibility and support of multimedia traffic. Although ATM initially targeted wide area networks, interest today is growing from LAN networking vendors. ATM is superior compared to other networking technologies, as it offers high bandwidth and it is scalable in the sense that the bandwidth capacity of an ATM system is not fundamentally limited to the technology itself. Furthermore, it can support multimedia traffic offering seamless integration with wide area ATM networks, both public and private.Initial ATM installations will operate as subnetworks of existing networks and MAC layer NAIL KA VAK h with TelialTelio Research.
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