Stories About: network virtualization

SD-WAN: Demystifying Overlay, Underlay, Encapsulation & Network Virtualization

SD-WAN: Demystifying Overlay, Underlay, Encapsulation & Network Virtualization

Following will be more details on the subject, but let’s just get this out of the way first: SD-WAN is a virtual, or overlay, network; the physical, or underlay, network is the one on which the overlay network resides. Virtual overlay networks contain nodes and links (virtual ones, of course) and allow new services to…