Method and apparatus for indicating congestion in a source...

Details Method and apparatus for indicating congestion in a source... Method and apparatus for indicating congestion in a source...

2004-04-19

2011-12-20

Shah, Chirag (Department: 2477)

Multiplex communications

Data flow congestion prevention or control

Control of data admission to the network

C370S237000

Reexamination Certificate

active

08081566

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.

REFERENCES:
patent: 5600798 (1997-02-01), Cherukuri et al.
patent: 6529475 (2003-03-01), Wan et al.
patent: 6922390 (2005-07-01), Chapman et al.
patent: 2003/0189901 (2003-10-01), Ozugur et al.

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