Overlay Network


An overlay network is a virtual network constructed on top of an existing physical network (the underlay). Overlay networks use software to create logical links and paths, independent of the underlying physical infrastructure. They are also sometimes called virtual networks or software-defined overlays.

How Overlay Networks Work

Overlay networks employ encapsulation techniques to wrap data packets within additional headers. These headers contain routing and addressing information for the virtual network. The underlying physical network simply treats these encapsulated packets as regular data, oblivious to the logical overlay topology.

Benefits of Overlay Networks

Use Cases

Netrinos and Overlay Networks

Netrinos provides a private overlay network solution that eliminates configuration complexity for IT managers. This transparent overlay creates a unified, software-defined connectivity layer across diverse hardware, streamlining operations and accelerating service delivery.