Which SD-WAN component centralizes policy configuration?

The vSmart controller is the centralized policy engine in Cisco SD-WAN. It establishes secure connections with all WAN Edge devices and distributes data plane and control plane policies, such as routing, security, and quality of service (QoS). This centralization simplifies management and ensures consistent policy enforcement across the entire SD-WAN fabric. Cisco DNA Center is a network management and automation platform primarily for enterprise campus and branch networks, not the SD-WAN policy engine. The vBond orchestrator is responsible for initial authentication and orchestration of SD-WAN components, not policy configuration. WAN Edge devices are responsible for enforcing policies locally and forwarding traffic, but they do not centralize policy configuration.