Which component in a software-defined network architecture creates virtual networks independent of the physical hardware?
Data plane
Overlay network
Underlay network
Control plane
The overlay network creates virtual networks that run on top of the physical infrastructure (underlay network), allowing for flexibility and scalability without altering the underlying hardware. The underlay network comprises the physical devices that provide data transport but does not create virtual networks. The control plane manages network decisions and policies, and the data plane handles the forwarding of packets; neither creates virtual networks independent of physical hardware.
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