4 Network Functions Virtualization (NFV)
4.6 Software architecture - Virtualized Network Functions (VNF)

Virtualized network feature is a network feature capable of operating on NFV infrastructure (NFVI) and is managed by NFV orchestrator (NFVO) and VNF manager. Internal VNF architecture is illustrated on Fig. 8.

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Fig. 8 - Architecture of NFV [17]

This architecture ensures quality connections using the interface: