Packet propagation and dynamic route discovery apparatus and techniques
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United States of America Patent
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Apr 9, 1996
Grant Date -
N/A
app pub date -
Dec 29, 1994
filing date -
Dec 29, 1994
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A method and apparatus for propagating information, such as node status and routing information, to nodes connected to a network. Each node has at least two ports connected to at least two different data links, such as rings. An information packet is transmitted by one or more nodes to every other node connected directly to a common data link. The receiving node determines whether the packet has been previously received. If the packet has not been previously received, then the receiving node stores the information contained in the packet and modifies the packet for forwarding to other nodes directly connected to the receiving node (and indirectly connected to the transmitting node). If the packet has been previously received, then propagation of the packet is terminated. In one embodiment, nodes learn the network configuration, including the address of other nodes connected to the network and paths for routing packets to such other nodes.
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