US 11,863,443 B2
Multi-region virtual overlay wide area network
Manoj Gopal Kulkarni, Fremont, CA (US); Pawan Kumar Singh, Los Altos, CA (US); Patrick Lee Mahan, Soquel, CA (US); Manoj Kumar Dutta, Dublin, CA (US); Theodore Ernest Tedijanto, Cupertino, CA (US); and Damon John Ennis, San Jose, CA (US)
Assigned to Hewlett Packard Enterprise Development LP, Spring, TX (US)
Filed by HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP, Houston, TX (US)
Filed on Aug. 4, 2021, as Appl. No. 17/394,266.
Application 17/394,266 is a continuation of application No. 17/039,376, filed on Sep. 30, 2020, granted, now 11,546,256.
Prior Publication US 2022/0103471 A1, Mar. 31, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H04L 43/16 (2022.01); H04L 45/64 (2022.01); H04L 12/28 (2006.01); H04L 12/46 (2006.01); H04L 69/168 (2022.01); H04L 101/604 (2022.01); H04L 101/668 (2022.01)
CPC H04L 45/64 (2013.01) [H04L 12/2863 (2013.01); H04L 12/4633 (2013.01); H04L 12/4641 (2013.01); H04L 69/168 (2013.01); H04L 2101/604 (2022.05); H04L 2101/668 (2022.05)] 21 Claims
OG exemplary drawing
 
1. A method for creating a multi-region virtual overlay network, the method comprising:
determining, by a first network appliance, that the first network appliance is assigned to a first regional subnetwork within a virtual overlay wide area network, the first network appliance having a first role within the first regional subnetwork;
generating a message header for a subnet message, wherein the message header comprises an identifier associated with the first network appliance, an identifier associated with the first regional subnetwork, and the first role of the first network appliance, and wherein the message header is associated with at least one routing information; and
sending the message header to a second network appliance in a second regional subnetwork within the virtual overlay wide area network, wherein a list of subnets maintained by the second network appliance is updated based on the message header and the routing information.