US 11,757,769 B1
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 May 13, 2022, as Appl. No. 17/744,579.
Int. Cl. H04L 45/00 (2022.01); H04L 45/28 (2022.01); H04L 45/121 (2022.01); H04L 45/12 (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 managing inter-branch communication in a network, comprising:
determining a first non-wide area network (WAN) path and a second non-WAN path for a flow using a plurality of flow records, wherein each of the plurality of flow records is associated with a first branch or a second branch;
determining a WAN segment for the flow using a plurality of path records, wherein each of the plurality of path records is associated with the first branch or the second branch and wherein the plurality of flow records and the plurality of path records are generated using packets associated with the flow;
generating an end-to-end path for the flow using the first non-WAN path, the second non-WAN path, and the WAN segment;
determining an end-to-end latency for the end-to-end path; and
performing an administrative action based on the end-to-end latency.