Patent ID: 11916786
Assignee: CISCO TECHNOLOGY, INC.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A software defined wide area network (SD-WAN) comprising:
a first region comprising:
a plurality of first routing controllers, each first routing controller stores a plurality of first routes for the first region; and
a plurality of first SD-WAN edge routers; and

a second region comprising:
a plurality of second routing controllers, each second routing controller stores a plurality of second routes for the second region;

wherein each first routing controller of the first region is prevented from storing the plurality of second routes for the second region; and
each second routing controller of the second region is prevented from storing the plurality of first routes for the first region; and
a plurality of second SD-WAN edge routers;

wherein each first SD-WAN edge router of the first region is configured to:
establish Overlay Management Protocol (OMP) peering connections with the plurality of first routing controllers of the first region; and
avoid establishing OMP peering connections with the plurality of second routing controllers of the second region; and

wherein each second SD-WAN edge router of the second region is configured to:
establish OMP peering connections with the plurality of second routing controllers of the second region; and
avoid establishing OMP peering connections with the plurality of first routing controllers of the first region.