US 12,143,297 B2
End-to-end path detection and management for inter-branch communication in a wide area network (WAN)
Sandip K Shah, Fremont, CA (US)
Assigned to Arista Networks, Inc., Santa Clara, CA (US)
Filed by Arista Networks, Inc., Santa Clara, CA (US)
Filed on Aug. 4, 2023, as Appl. No. 18/365,412.
Application 18/365,412 is a continuation of application No. 17/744,579, filed on May 13, 2022, granted, now 11,757,769.
Prior Publication US 2023/0388225 A1, Nov. 30, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H04L 45/00 (2022.01); H04L 45/12 (2022.01); H04L 45/121 (2022.01); H04L 45/28 (2022.01)
CPC H04L 45/38 (2013.01) [H04L 45/121 (2013.01); H04L 45/123 (2013.01); H04L 45/28 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method of operating a controller, the method comprising:
obtaining, by the controller, a first set of flow records based on a sampling of network traffic in a first branch;
obtaining, by the controller, a second set of flow records based on a sampling of network traffic in a second branch;
obtaining, by the controller, a set of path records for network traffic traversing between the first branch and the second branch over a wide area network (WAN);
determining, by the controller, an end-to-end path between a first computing device in the first branch and a second computing device in the second branch based on the first set of flow records, the second set of flow records, and the set of path records; and
taking an action based on the end-to-end path.