Method and system for providing a loop-free ring topology

Details Method and system for providing a loop-free ring topology Method and system for providing a loop-free ring topology

2003-05-13

2008-03-11

Ryman, Daniel J. (Department: 2619)

Multiplex communications

Fault recovery

Bypass an inoperative channel

C370S217000, C370S224000, C709S223000

Reexamination Certificate

active

07342877

ABSTRACT:
A method for preventing loops in a ring topology of a computer network is disclosed. The method includes receiving a packet at a node on a shared packet ring and inserting a header containing an ID identifying the node at which the packet was received on the ring as an originating node. The packet is forwarded onto the ring and the ID is checked when received on a node. The packet is dropped if the ID identifies the node as the originating node.

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patent: 7065040 (2006-06-01), Nagamine
patent: 2001/0048687 (2001-12-01), Coden
patent: 2004/0103179 (2004-05-01), Damm et al.

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