Routing schemes for packet switching networks
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United States of America Patent
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Feb 14, 2006
Grant Date -
Apr 8, 2004
app pub date -
Jun 15, 2001
filing date -
Jun 16, 2000
priority date (Note) -
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status (Latency Note)
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Abstract
New routing techniques over a packet switching network so that the protocol processing at inter-node line cards is drastically simplified or even eliminated altogether. These techniques utilize an ingress node of the packet switching network for translating the routing information into a fixed route encoded as a sequence of in-band control signals, fragmenting the packet into cells of a fixed length, and affixing the sequence of in-band control signals in front of each of the cells, deploying the in-band control signals in a sequence in nodes on the route to guide each of the cells through the sequence of nodes and then consuming the in-band control signals, and at an egress node reassembling the cells into the packet.
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