The Versa Controller is the central brain of the SD-WAN control plane. Its primary function is to act as a control plane node (B), establishing secure connectivity with all Versa Secure SD-WAN Edge devices and distributing routing information and policies using MP-BGP. Through this central role, it provides visibility into the real-time state of the network overlay and enforces centralized policies, thus providing visibility and control (D). The Controller can also be configured to operate as an on-premises staging server to facilitate the Zero Touch Provisioning (ZTP) process for new branch appliances (E).

A. It does CPE lifecycle management.

This is incorrect. CPE lifecycle management, including onboarding, configuration templating, and software upgrades, is a primary function of the Versa Director.

C. It is a data plane node.

This is incorrect. The Versa Controller is a dedicated control plane component. Data plane functions, such as packet forwarding, are performed by the Versa Secure SD-WAN Edge devices.

1. Versa Networks

"Versa Secure SD-WAN Solution Guide

Release 21.2.2"

For Answer B & D: In Section 2.3

"Versa Controller

" it states

"Versa Controller is the control plane of the Versa SD-WAN solution... It is responsible for collecting state information from the CPEs and distributing routing and policy information to the CPEs." This confirms its role as a control plane node that provides visibility (state information) and control (policy distribution).

For refuting A: In Section 2.1

"Versa Director

" it is described as the "single point for centralized management and orchestration" and is responsible for "provisioning and lifecycle management of the VOS instances."

For refuting C: The guide consistently distinguishes the Controller's control plane function from the data plane function of the "VOS (CPE)" described in Section 2.4.

2. Versa Networks

"Versa Secure SD-WAN Zero Touch Provisioning Deployment Guide

Release 21.2.2"

For Answer E: In Section 3.2

"On-Premises Staging Server

" the document states

"You can configure a Versa Controller as a staging server... The on-premises staging server provides the initial bootstrap configuration to the CPE device." This explicitly confirms the Controller can function as a staging server.