In our previous article, we had focused on The Network Platform for Network Functions Virtualization (OPNFV), mainly covering the virtual infrastructure and the corresponding manager that support Network Functions Virtualization (NFV). In this article, we will focus on open source options that are available for building different virtual network functions.
A Virtualized Network Function (VNF) is a network function capable of running on an NFV Infrastructure (NFVI) and being orchestrated by a NFV Orchestrator (NFVO) and VNF Manager. VNF is expected to support well-defined interfaces to other network functions, the VNF Manager, its EMS, and the NFVI, in addition to the well-defined functional behavior.
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