Compara mètodes

	Network Function Virtualization (NFV)	Xarxes definides per programari (SDN)
Camp	Telecomunicacions	Telecomunicacions
Família	Process / pipeline	Process / pipeline
Any d'origen	2012	2008
Autor original	ETSI NFV Industry Specification Group	Nick McKeown et al.
Tipus	virtualization paradigm	programmable network paradigm
Font seminal	ETSI (European Telecommunications Standards Institute). (2012). Network Functions Virtualisation (NFV); Architectural Framework. GS NFV 002 V1.1.1.	McKeown, N., Anderson, T., Balakrishnan, H., et al. (2008). OpenFlow: enabling innovation in campus networks. ACM SIGCOMM Computer Communication Review, 38(2), 69-74.
Àlies	virtual network functions, network slicing	network virtualization, programmable networks
Relacionats	2	4
Resum	Network Function Virtualization (NFV) is a paradigm that implements traditional network functions (firewalls, load balancers, gateways, packet inspection) as software running on commodity servers instead of proprietary hardware appliances. Introduced by ETSI (2012), NFV reduces capital and operational expenses by leveraging cloud infrastructure and enabling rapid deployment of network services. Combined with SDN, NFV enables on-demand service creation and network slicing. It is now central to 5G and cloud-native network architecture.	Software-Defined Networking (SDN) is a network architecture paradigm that decouples the control plane (routing decisions) from the data plane (packet forwarding). Introduced by McKeown et al. (2008) with OpenFlow, SDN enables network programmability by centralizing control logic in software-based controllers that direct forwarding behavior of simple programmable switches. SDN has transformed network operations, enabling rapid service deployment, traffic engineering, and cloud integration. It is now foundational in data centers and service provider networks.