SD-WAN Regional Hub Model
An SD-WAN Regional Hub is a network model that combines the best of the hub and spoke and the full mesh architecture to improve performance and security, simplify provisioning, and extend connectivity. It organizes branches into logical regions which connect back to a central hub within a region—like a system of distributed and organized hub and spoke sites. Advanced SD-WAN offerings even support dynamic direct connections between branches when application traffic dictates.
Security and network services exist at the Regional Hub for efficient backhauling over a short distance. The most notable benefit, in line with the cost savings associated with SD-WAN, is the ability to minimize changes to the network security architecture, while providing significant flexibility for future WAN changes.