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Training Camp • Cybersecurity Glossary
SD-WAN underlay refers to the physical network infrastructure that supports the deployment of a Software-Defined Wide Area Network (SD-WAN) solution.
SD-WAN Underlay Definition: SD-WAN underlay refers to the physical network infrastructure that supports the deployment of a Software-Defined Wide Area Network (SD-WAN) solution.
SD-WAN Underlay refers to the physical network infrastructure that provides the foundational connectivity for a Software-Defined Wide Area Network (SD-WAN) solution. It includes the routers, switches, and network links that facilitate data transfer between different locations in a secure and efficient manner. The underlay is responsible for establishing the basic network paths and ensuring reliable connectivity before overlay SD-WAN features, such as security protocols and traffic management, are applied.
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