Virtual Access Router
Access router is a sort of shorthand term for an Internet access router or wide area network (WAN) access router. When deployed by an organization this network element is often called an enterprise router, and is traditionally implemented as a dedicated hardware appliance on the subscriber premise. However, the access router functionality may be virtualized. Virtualization means the software is separated or de-coupled, from the customer premise equipment (CPE) hardware. Such virtualization results in a virtualized network function (VNF), which may also be called a software access router or virtual access router.