Multiplex communications – Wide area network – Packet switching
Patent
1995-05-11
1996-10-29
Safourek, Benedict V.
Multiplex communications
Wide area network
Packet switching
370 583, 370 601, 370 61, 370 79, H04J 314
Patent
active
055703488
ABSTRACT:
An ATM switching system architecture of a switch fabric-type is built of, a plurality of ATM switch element circuits and routing table circuits for each physical connection to/from the switch fabric. A shared pool of memory is employed to eliminate the need to provide memory at every crosspoint. Each routing table maintains a marked interrupt linked list for storing information about which ones of its virtual channels are experiencing congestion. This linked list is available to a processor in the external workstation to alert the processor when a congestion condition exists in one of the virtual channels. The switch element circuit typically has up to eight 4-bit-wide nibble inputs and eight 4-bit-wide nibble outputs and is capable of connecting cells received at any of its inputs to any of its outputs, based on the information in a routing tag uniquely associated with each cell.
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Allen Kenneth R.
Blum Russell W.
Integrated Telecom Technology, Inc.
Safourek Benedict V.
Villeneuve Joseph M.
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