Multiple path routing mechanism for packet communications network
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United States of America Patent
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Feb 27, 1990
Grant Date -
N/A
app pub date -
Nov 23, 1987
filing date -
Nov 23, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A mechanism for establishing at least one transmission route between a source node and a destination node in a multinode communications network comprises monitoring transmission characteristics of each of the transmission paths among the respective nodes of the network so as to derive a plurality of path metrics representative of the ability of the respective transmission paths of the network to transmit communication signals. Then, feasible transmission routes to be used for the transmission of communication signals from the source node to the destination node are selected as those routes which extend from the source node to the destination node and each of which is comprised of one or more transmission paths among the nodes of the network and the sum of path metrics of transmission paths from neighboring nodes to the destination node is less than the path metric of a transmission path the end nodes of which correspond to the source and destination nodes. Communication signals are then transmitted from the source node to the destination node over the selected feasible transmission routes.
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