Description: The underlay network refers to the physical infrastructure that supports virtual networks, acting as the foundation upon which various connectivity solutions are built and operated. This infrastructure includes cables, switches, routers, and other devices that enable data transmission through different media, such as fiber optics, copper, or wireless. The underlay network is essential to ensure that virtual networks, which can be segmented and managed independently, operate efficiently and securely. By providing the necessary connectivity, the underlay network allows for the creation of multiple virtual networks over a single physical infrastructure, optimizing resource use and facilitating scalability. Additionally, network segmentation through this infrastructure enables organizations to implement more effective security and traffic management policies, adapting to the changing needs of the business environment. In summary, the underlay network is a critical component in modern network architecture, allowing for flexibility and efficiency in network resource management.
