Which component is the central policy and route controller in the SD-WAN fabric?

• A. vSmart
• B. vManage
• C. vBond
• D. WAN Edge

Answer: (A)

vSmart is the central policy and route controller in the SD-WAN fabric. It runs the control plane and hosts the routing and policy logic that decides how traffic should be steered across the network. Using the overlay management protocol (OMP), vSmart distributes routing information, security policies, QoS, and service policies to all WAN Edge devices and gathers reachability data to make global path decisions. This centralized control lets the entire fabric apply consistent policies and route decisions, rather than having each edge decide in isolation.

In contrast, vManage handles management tasks like configuration and monitoring, vBond handles onboarding and initial authentication as the rendezvous point, and the WAN Edge devices are the actual data-plane endpoints that forward user traffic and enforce the policies as instructed by vSmart.