350-401 Question 39
Single answerAn enterprise is deploying Cisco SD-WAN and needs to ensure proper communication between the control and data planes. Which element is responsible for establishing secure tunnels between SD-WAN devices and exchanging routing information in the control plane?
- A
vEdge
- B
vSmart
- C
vManage
- D
OMP (Overlay Management Protocol)
Show answer and explanation
Correct answer: B
Explanation
In Cisco SD-WAN, the vSmart controller is the core control plane element responsible for managing and distributing routing information using OMP. It ensures secure communication and policy enforcement across the SD-WAN fabric. While vEdge handles data plane activities and vManage provides a management interface, vSmart exclusively handles the control plane role.
- A. Incorrect.
vEdge is a data plane component responsible for forwarding traffic and establishing secure tunnels, but it does not handle the control plane functions related to routing information exchange.
- B. Correct.
vSmart is the control plane component responsible for policy management and the distribution of routing information between SD-WAN devices using OMP. It also helps establish secure communication between devices.
- C. Incorrect.
vManage is a management plane component used for configuration, monitoring, and troubleshooting of the SD-WAN solution. It does not directly handle control plane tasks.
- D. Incorrect.
OMP (Overlay Management Protocol) is a protocol used to exchange routing information, but it is implemented and managed by the vSmart controller. Hence, it is not a standalone control plane element.