Patent ID: 11863443
Assignee: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 16:
17. A system operating as a first network appliance in a multi-region virtual overlay network for a software-defined wide area network, the system comprising:
at least one processor; and
a memory storing instructions that, when executed by the at least one processor, cause the system to perform a method, the method comprising:
maintaining a local subnet table that includes a first set of subnet information learned from packets received from a second network appliance, wherein the first set of subnet information is associated with a first transaction identifier;
receiving a second set of subnet information from the second network appliance, wherein the second set of subnet information is included in a packet with a message header comprising an identifier of the second network appliance, an identifier associated with a regional subnetwork of the second network appliance, a role of the second network appliance, and a second transaction identifier; and
based on the second transaction identifier, replacing the first set of subnet information in the local subnet table with the second set of subnet information.