5V0-42.21 · Question #24
Which VMware SD-WAN component Is responsible for overlay route distribution?
The correct answer is A. VMware SD-WAN Controller. The VMware SD-WAN Controller is the control plane component that manages and distributes overlay routing information between all SD-WAN Edges across the network - it acts as the central routing intelligence, exchanging dynamic route information (BGP/OSPF) on behalf of connected…
Question
Which VMware SD-WAN component Is responsible for overlay route distribution?
Options
- AVMware SD-WAN Controller
- BVMware SD-WAN Orchestrator
- CVMware SD-WAN Edge
- DVMware SD-WAN Hub
How the community answered
(44 responses)- A93% (41)
- B5% (2)
- C2% (1)
Explanation
The VMware SD-WAN Controller is the control plane component that manages and distributes overlay routing information between all SD-WAN Edges across the network - it acts as the central routing intelligence, exchanging dynamic route information (BGP/OSPF) on behalf of connected sites.
Why the distractors are wrong:
- B (Orchestrator) is the management plane - it handles configuration, policy, and monitoring via a GUI/API, but plays no role in real-time route distribution.
- C (Edge) is the data plane device at each site that receives routes from the Controller and forwards traffic, but it doesn't distribute routes to other Edges directly.
- D (Hub) is simply a specific deployment role for an Edge in a hub-and-spoke topology - not a distinct architectural component with its own routing function.
Memory tip: Match the layers - Orchestrator = Operations (management), Controller = Control plane (routing), Edge = Egress/forwarding (data plane). When the exam says "route distribution," think control plane → Controller.
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