VNF (Virtual Network Function)

A Virtual Network Function (VNF) is a software-based version of a traditional network device, like a firewall or router, that runs on virtualized hardware. Instead of physical equipment, VNFs operate on flexible, shared servers, allowing network services to be deployed, managed, and scaled more efficiently. This approach enables telecom providers and businesses to quickly introduce or update network features without needing physical hardware changes, leading to more agile, cost-effective, and adaptable networks. VNFs are essential components of Software-Defined Networking (SDN) and Network Functions Virtualization (NFV), transforming how network services are delivered.