Network Functions Virtualization (NFV) is greatly changing today’s networking. This new approach moves switching, routing, firewalls, and broadband remote access servers (BRAS), from special hardware to cost-efficient commercial off-the-shelf (COTS) server-based platforms.
But NFV offers challenges along with the new business opportunities and cost savings. Now, Network Equipment Manufacturers (NEMs) must create virtual network functions (VNFs) that can run on COTS hardware. NEMs are working hard to virtualize their products. Service providers too are creating services that run on virtualized systems. To gain from this progress, protocols must work smoothly and well with specifications.