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Training Camp • Cybersecurity Glossary
Underlay Network refers to the physical network infrastructure composed of cables, switches, and routers that supports the overlay network's communication by providing connectivity and transport services.
Underlay Network Definition: Underlay Network refers to the physical network infrastructure composed of cables, switches, and routers that supports the overlay network's communication by providing connectivity and transport services.
Underlay Network refers to the physical network infrastructure that carries data traffic between network devices. It includes physical cables, switches, routers, and other hardware components that provide the foundation for higher-level network overlays and services. The underlay network forms the basis for overlay networks such as virtual private networks (VPNs) or software-defined networks (SDNs) to operate upon.
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