*2.6.3 Features*

Because NFV architecture virtualizes network functions that are thus supported on commodity hardware, network managers can add, move, or change network functions at the server level during a provisioning process. If a VNF running on a virtual machine requires more bandwidth, for example, the decision to scale or move a VNF is to be taken by NFV management and orchestration functions that can move the virtual machine to another physical server or provision another virtual machine on the original server to handle part of the load. Having this flexibility allows an IT department to respond in a more agile manner to changing business goals and network service demands.
