300-415 Question #16: Real Exam Question with Answer & Explanation

The correct answer is B: vSmart. The vSmart controller is the SD-WAN component responsible for managing the control plane, running OMP to distribute routing and policy information across the overlay fabric.

Architecture

Question

Which component of the Cisco SD-WAN architecture oversees the control plane of overlay network to establish, adjust, and maintain the connections that form the Cisco SD-WAN fabric?

Options

AAPIC-EM
BvSmart
CvManage
DvBond

Explanation

The vSmart controller is the SD-WAN component responsible for managing the control plane, running OMP to distribute routing and policy information across the overlay fabric.

Common mistakes.

A. APIC-EM is Cisco's legacy Application Policy Infrastructure Controller for Enterprise Module used in older SDN deployments and is not a component of the Cisco SD-WAN architecture.
C. vManage is the management plane component that provides the GUI and API for configuration and monitoring, but it does not handle the control plane OMP sessions or routing distribution.
D. vBond serves as the orchestration plane, facilitating initial authentication and NAT traversal for new devices, but it does not maintain ongoing control plane sessions or distribute routing information.

Concept tested. Cisco SD-WAN vSmart controller plane function

Reference. https://www.cisco.com/c/en/us/td/docs/routers/sdwan/configuration/sdwan-xe-gs-book/system-overview.html

Topics

#SD-WAN Architecture#vSmart Controller#Control Plane#Overlay Network

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