300-415 · Question #93
In a Cisco SD WAN architecture, what is the role of the WAN Edge?
The correct answer is D. It is the data plane that is responsible for forwarding traffic. In Cisco SD-WAN, the WAN Edge router operates as the data plane, forwarding user traffic between sites and applying policies such as QoS, encryption, and routing across the overlay network.
Question
Options
- AIt provides orchestration to assist in automatic provisioning of WAN Edge routers and overlay
- BIt is the management plane responsible for centralized configuration and monitoring
- CIt is the control plane that builds and maintains network topology
- DIt is the data plane that is responsible for forwarding traffic
How the community answered
(50 responses)- A4% (2)
- B2% (1)
- C2% (1)
- D92% (46)
Why each option
In Cisco SD-WAN, the WAN Edge router operates as the data plane, forwarding user traffic between sites and applying policies such as QoS, encryption, and routing across the overlay network.
Orchestration and automatic provisioning assistance is the role of vBond, which helps WAN Edge devices discover the controllers during onboarding.
Centralized configuration and monitoring is the role of vManage, the management plane component.
The control plane - building and maintaining network topology via OMP - is the role of vSmart.
The WAN Edge (also called the vEdge or Catalyst SD-WAN router) is the data plane component in the SD-WAN architecture. It forwards traffic between branches and data centers, enforces data policies received from vSmart, and encapsulates traffic in IPsec tunnels across WAN transports. All actual user packet forwarding occurs on WAN Edge devices.
Concept tested: Cisco SD-WAN architecture WAN Edge data plane role
Source: https://www.cisco.com/c/en/us/solutions/enterprise-networks/sd-wan/what-is-sd-wan.html
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