Communication network and computer network server and interface

Details Communication network and computer network server and interface Communication network and computer network server and interface

1994-08-29

1995-09-26

Kizou, Hassan

Multiplex communications

Wide area network

Packet switching

370 855, 370 8513, 370 942, H04L 1228, H04L 1246, H04L 1256

Patent

active

054539803

ABSTRACT:
A communication network (VCN) offering an ETHERNET service to a plurality of local terminals (ELT1, ELTN, TLT1, TLTN1-8), typically computers, is proposed. Flexibility and cost are enhanced with respect to existing ETHERNET networks by emulating an ETHERNET network towards the local terminals while pooling complex functions in a computer network server (LANS) connected to the backbone ATM network (BB). This is achieved by coupling the local terminals, preferably separately, to standard ETHERNET links (ELN, TL1, TLN1-8) and by terminating these links in interface modules (EIM1, EIMN, TIM1, TIMN) converting the ETHERNET frames from the local terminals in ATM packets destined for the central server which stores these packets in an input buffer (IB1-X) and performs the above complex functions, particularly also the transmission of these packets to appropriate ones of the interface modules. Buffer overflow is avoided by transmitting backpressure signals (BP1-X) to the interface modules so as to control them to halt transmission on the computer links. The present invention is particularly well suited for early deployment of ATM networks as their inherent high bitrate transmission capability is used to provide ETHERNET type services at a lower cost per terminal while employing standard access technology.

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