| US 7,502,334 B2 | ||
| Directional integrity enforcement in a bi-directional braided ring network | ||
| Brendan Hall, Eden Prairie, Minn. (US); Kevin R. Driscoll, Maple Grove, Minn. (US); and Michael Paulitsch, Columbia Heights, Minn. (US) | ||
| Assigned to Honeywell International Inc., Morristown, N.J. (US) | ||
| Filed on Nov. 19, 2004, as Appl. No. 10/993,932. | ||
| Claims priority of provisional application 60/523892, filed on Nov. 19, 2003. | ||
| Claims priority of provisional application 60/523865, filed on Nov. 19, 2003. | ||
| Prior Publication US 2005/0129038 A1, Jun. 16, 2005 | ||
| Int. Cl. H04L 12/28 (2006.01); H04J 3/00 (2006.01) | ||
| U.S. Cl. 370—258 [370/404; 370/498] | 16 Claims |
| 1. A node comprising:
an interface to communicatively couple the node to a first channel and a second channel, the first channel supporting communications
in a first logical direction and the second channel supporting communications in a second logical direction;
wherein the first channel communicatively couples the node to a first neighbor node and a first neighbor's neighbor node;
wherein the second channel communicatively couples the node to the first neighbor node and the first neighbor's neighbor node;
and
wherein, when the first neighbor node is scheduled to transmit on both the first and second channels and the node receives
a first frame of data from the first neighbor node via the first channel, the node:
forwards the first frame to the first neighbor's neighbor along the second channel;
receives a second frame of data from the first neighbor's neighbor via the first channel;
compares at least a portion of the first frame to at least a portion of the second frame; and
relays at least one of the first frame and the second frame along the first channel with information indicative of the comparison.
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