Multiplex communications – Wide area network – Packet switching
Patent
1994-02-15
1995-04-04
Bowler, Alyssa H.
Multiplex communications
Wide area network
Packet switching
395200, 370 941, 364DIG1, 3642217, 36424294, 364259, 3642591, G06F 1300
Patent
active
054045657
ABSTRACT:
A multiple node network is described wherein messages are transmitted between source and intermediate nodes to a destination node, the network including a message progress reporting system which employs a status word that enables the source node to determine a message's progress. Each parent node comprises a status word register for reporting a status word that indicates the progress of the message. The parent node further includes a routing mechanism for receiving a status word from a child node that indicates the message's progress in the child node and at succeeding nodes thereafter. The routing mechanism updates the status word in the status word register in accordance with the received status word. The routing mechanism further transmits the updated status word from the parent node to a source node upon the parent node having received status words from all child nodes to which the parent node transmitted the message whereby each succeeding parent node does not transmit its status word until all succeeding nodes have accumulated their status words and reported upward in the tree.
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Larry Hughes, "LAN Gateway Designs for Multicast Communication", IEEE Computer Society Press, Proceedings of the 13th Conference on Local Computer Networks, Aug. 1988, pp. 82-91.
Gould Joel M.
Lackritz Neal M.
Bowler Alyssa H.
Geckil Melmet
International Business Machines - Corporation
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