US 11,991,096 B2
Unicast addressing for redundant communication paths
Kevin Raymond Driscoll, Maple Grove, MN (US); and Brendan Hall, Eden Prairie, MN (US)
Assigned to Honeywell International Inc., Charlotte, NC (US)
Filed by Honeywell International Inc., Charlotte, NC (US)
Filed on Aug. 25, 2021, as Appl. No. 17/411,600.
Claims priority of provisional application 63/073,855, filed on Sep. 2, 2020.
Prior Publication US 2022/0070083 A1, Mar. 3, 2022
Int. Cl. H04L 49/55 (2022.01); H04L 45/16 (2022.01); H04L 49/00 (2022.01); H04L 49/102 (2022.01); H04L 49/552 (2022.01)
CPC H04L 49/557 (2013.01) [H04L 45/16 (2013.01); H04L 49/102 (2013.01); H04L 49/30 (2013.01); H04L 49/552 (2013.01); H04L 49/555 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A network comprising:
a plurality of nodes; and
a plurality of communication links communicatively coupling each of the plurality of nodes to at least one respective adjacent node of the plurality of nodes via a first communication path in a first direction and to another respective adjacent node of the plurality of nodes via a second communication path in a second direction;
wherein a first node and a second node of the plurality of nodes are configured to form a self-checking pair, wherein the first node and the second node are adjacent nodes or separated by a single node;
wherein the first node of the plurality of nodes is configured to:
send a first message in the first direction via a first side of the first node, wherein the first message includes a first destination address that corresponds to a second side of the first node opposite the first side of the first node;
send a second message in the second direction via the second side of the first node, wherein the second message includes a second destination address that corresponds to the first side of the first node;
wherein the second node of the plurality of nodes is configured to:
send a third message in the first direction via a first side of the second node, wherein the third message includes a third destination address that corresponds to a second side of the second node opposite the first side of the second node;
send a fourth message in the second direction via the second side of the second node, wherein the fourth message includes a fourth destination address that corresponds to the first side of the second node.