US 11,706,123 B2
Time-sensitive software defined networking
Alen Mehmedagic, Wilmington, MA (US)
Assigned to Schneider Electric Industries SAS, Rueil Malmaison (FR)
Filed by Schneider Electric Industries SAS, Rueil Malmaison (FR)
Filed on Sep. 14, 2020, as Appl. No. 17/20,538.
Application 17/020,538 is a continuation of application No. 16/318,683, granted, now 10,805,205, previously published as PCT/EP2017/068213, filed on Jul. 19, 2017.
Claims priority of provisional application 62/364,313, filed on Jul. 19, 2016.
Prior Publication US 2020/0412638 A1, Dec. 31, 2020
Int. Cl. H04L 45/121 (2022.01); H04L 45/302 (2022.01); H04L 45/64 (2022.01); H04L 45/12 (2022.01); H04L 45/42 (2022.01)
CPC H04L 45/121 (2013.01) [H04L 45/123 (2013.01); H04L 45/3065 (2013.01); H04L 45/42 (2013.01); H04L 45/64 (2013.01)] 25 Claims
OG exemplary drawing
 
1. A method of determining the shortest path from a talker device to a listener device through a time-sensitive software defined network (TsSDN), comprising:
in a TsSDN comprising a TsSDN controller and plurality of network devices, the TsSDN having one or more paths through which traffic from a talker device can be routed to a listener device, assigning to each link between adjacent devices in the one or more paths a cost;
determining, based on the cost of links, a first path that is the shortest path for routing traffic from the talker device to the listener device, wherein the shortest path has the lowest cost;
detecting a change in one or more parameters associated with at least one link in the one or more paths, wherein the one or more parameters includes load;
dynamically recalculating the cost of links in response to detecting the change; and
determining from the recalculated cost of links a second path as the shortest path for routing the traffic from the talker device to the listener device;
the method further comprising determining the traffic from the talker device to be time-sensitive or non-time-sensitive, wherein the shortest path from the talker device to the listener device is through only the time-sensitive network devices when the traffic from the talker device is determined to be time-sensitive, and wherein the shortest path from the talker device to the listener device is through only the non-time-sensitive network devices when the traffic from the talker device is determined to be non-time-sensitive.