METHOD AND APPARATUS FOR INDICATING CONGESTION IN A SOURCE ROUTED NETWORK
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United States of America Patent
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app pub date -
Dec 19, 2011
filing date -
Apr 19, 2004
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Abandoned
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Abstract
A packet header in a source routed network is augmented to include, with each hop identifier, at least one bit for indicating congestion at the particular hop. As the packet traverses from the source to the destination, when congestion is detected at a hop, a congestion bit associated with the hop is set in the header. At the destination, when another packet is forwarded from the destination to the source on the same path, the congestion bits are reflected back to the source. When the source receives the congestion bits, it has the option of re-routing subsequent communications between the source and destination nodes by generating a new hop list, which routes around one or more of the congested hops.
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