A WAN Edge router displays control connections as up, but application-aware routing policies are not taking effect. Which component is most likely unreachable?

• A. vBond orchestrator
• B. Wireless LAN Controller
• C. Cisco ISE node
• D. vSmart controller

Answer: (D)

Application-aware routing policies in SD-WAN come from the vSmart controller and are pushed to the WAN Edge as part of the control plane. If the edge shows control connections as up but the policies aren’t taking effect, it means the edge cannot reach the vSmart controller to receive or enforce those policies. The vBond orchestrator handles initial authentication, while the Wireless LAN Controller and Cisco ISE handle wireless and security services, not the distribution of application-aware routing policies. So, the most likely unreachable component is the vSmart controller.