350-401 Question 40
Select 4An enterprise is deploying Cisco SD-WAN in its network. The network administrator wants to understand the roles of the control and data plane elements in Cisco SD-WAN. Which of the following statements accurately describe these elements?
- A
The vSmart controller is responsible for centralized policy and routing decisions, forming the control plane.
- B
The vEdge router is responsible for forwarding data packets between sites, forming part of the data plane.
- C
The vManage system is responsible for device configuration, monitoring, and management, forming part of the data plane.
- D
The control plane communicates with the data plane using the Overlay Management Protocol (OMP).
- E
The data plane is responsible for encryption and secure tunneling between SD-WAN edge devices.
Show answer and explanation
Correct answers: A, B, D, E
Explanation
In a Cisco SD-WAN architecture, the control plane (vSmart) is responsible for centralized routing and policy decisions, while the data plane (vEdge/cEdge) handles packet forwarding and secure tunneling. The Overlay Management Protocol (OMP) is a key protocol that facilitates communication between these planes. vManage, however, is part of the management plane and is not involved in control or data plane tasks. Understanding these roles is essential for deploying and managing Cisco SD-WAN solutions.
- A. Correct.
This is correct. The vSmart controller is a core component of the control plane and is responsible for centralized policy management and routing decisions.
- B. Correct.
This is correct. The vEdge device (or cEdge in Cisco SD-WAN) is part of the data plane and is tasked with forwarding data packets between sites.
- C. Incorrect.
This is incorrect. vManage is part of the management plane, not the data plane, and is used for configuration and monitoring, not packet forwarding.
- D. Correct.
This is correct. The Overlay Management Protocol (OMP) is used by the control plane to communicate with the data plane and manage routing and policy distribution.
- E. Correct.
This is correct. The data plane in SD-WAN handles secure tunneling (IPsec) and encryption for traffic between edge devices.