Multiplex communications – Pathfinding or routing – Switching a message which includes an address header
Patent
1995-06-07
1999-06-22
Kim, Kenneth S.
Multiplex communications
Pathfinding or routing
Switching a message which includes an address header
370389, 39520068, H04L 1200
Patent
active
059149531
ABSTRACT:
A processing system includes multiple processor units and multiple input/output elements communicatively interconnected by a system area network having a plurality of multi-ported router elements. Communication between the system elements uses message packets that contain, among other things, destination information that identifies the intended recipient of the message packet. That destination information is used, at least in part, for routing message packets from a its source to its intended destination. Deadlocks are eliminated by providing each router with information as to which ports cannot be used for re-transmission of a message packet, depending upon which port is receiving that message packet.
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Garcia David J.
Horst Robert W.
Iswandhi Geoffrey I.
Krause John C.
Sonnier David Paul
Kim Kenneth S.
Tandem Computers Inc.
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