What role does vSmart perform in a Cisco SD-WAN deployment?
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Correct answer: to establish secure control plane connections.
Why this is the answer
The vSmart controller is the centralized brain of the Cisco SD-WAN control plane. It establishes secure DTLS or TLS connections with vEdge routers and other vSmart controllers, distributing routing information, policy, and security parameters across the SD-WAN fabric. This allows vEdge routers to learn about available network paths and apply policies. The other options are incorrect because: Monitoring, configuring, and maintaining SD-WAN devices is primarily the role of vManage. Providing secure data plane connectivity over WAN links is the function of the vEdge routers. Performing initial authentication of devices is handled by vBond, the orchestrator.
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