Packet routing system and method with quasi-real-time control
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United States of America Patent
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Nov 26, 1996
Grant Date -
N/A
app pub date -
Mar 23, 1995
filing date -
Mar 23, 1995
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
In a system that includes a constellation of satellite communication nodes, information packets are routed through the constellation using routing tables stored in each communication node. When a packet is received at a node, the packet's destination and routing table ID are read. One of several routing tables are selected using a mapping table. Each of the several routing tables has a different routing instruction set. The packet is routed away from the node using the selected routing table. When system traffic is heavy, or some of the communication links are overloaded or have failed, routing table control bits are sent to the nodes updating the mapping table. Packets are subsequently routed using different sets of routing tables, such as ones having greater hop counts.
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