Azure Virtual WAN is part of the overall Azure architecture.
As a Virtual WAN, it provides a hub and spoke architecture, enabling connectivity between endpoints distributed across networks with unique scaling and performance capabilities for branches (VPN/SD-WAN devices), users (Azure VPN/OpenVPN/IKEv2 clients), and virtual networks.
As such, with Azure vWAN integrated, you can bring networking, security, and routing functionalities together to provide a single operational interface and take action.
Some of the main features include:
Branch connectivity (via connectivity automation from Virtual WAN Partner devices such as SD-WAN or VPN CPE)
Site-to-site VPN connectivity
Remote user VPN connectivity (point-to-site)
Private connectivity (ExpressRoute)
Intra-cloud connectivity (transitive connectivity for virtual networks)
VPN ExpressRoute inter-connectivity
Routing, Azure Firewall, and encryption for private connectivity