Network Point of Presence (N-PoP) Network Point of Presence (N-PoP) – a location where a network function is implemented as either a physical network function (PNF) or a virtual network function (VNF). As defined by Network Functions Virtualization (NFV) ETSI Industry Specification Group (ISG) in the Network Functions Virtualisation (NFV); Terminology for Main Concepts in NFV For more information check out: What is NFV? Which is better NFV or SDN? Why SDN or NFV Now? Who is ETSI?