Which controller distributes centralized policies and orchestrates route advertisements between WAN Edge devices?

• A. vBond
• B. vSmart
• C. vManage
• D. ISE

Answer: (B)

The key idea is how the SD-WAN fabric centralizes control over policies and routing. The vSmart controller acts as the central control plane, distributing centralized policies and coordinating how routes are learned and shared across all WAN Edge devices. It runs the overlay routing logic (MP-BGP) and enforces routing, security, and QoS policies that were defined in the management layer and pushed to the edges. Edges rely on vSmart to learn the intended paths and to exchange routing information so traffic can be steered across multiple transport networks.

Bootstrap and trust establishment are handled by vBond, which authenticates devices and helps them join the network, but it does not distribute policies. The management plane, accessed via vManage, is where you configure policies and monitor devices, but the actual distribution and orchestration of those policies and routes across the fabric is driven by vSmart.

ISE isn’t part of the SD-WAN control plane.