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| Software-Defined Networking (SDN)× | Virtualisering af netværksfunktioner (NFV)× | Open Shortest Path First (OSPF)× | |
|---|---|---|---|
| Fagområde | Telekommunikation | Telekommunikation | Telekommunikation |
| Familie | Process / pipeline | Process / pipeline | Process / pipeline |
| Oprindelsesår≠ | 2008 | 2012 | 1998 |
| Ophavsperson≠ | Nick McKeown et al. | ETSI NFV Industry Specification Group | John Moy |
| Type≠ | programmable network paradigm | virtualization paradigm | link-state routing protocol |
| Oprindelig kilde≠ | McKeown, N., Anderson, T., Balakrishnan, H., et al. (2008). OpenFlow: enabling innovation in campus networks. ACM SIGCOMM Computer Communication Review, 38(2), 69-74. DOI ↗ | ETSI (European Telecommunications Standards Institute). (2012). Network Functions Virtualisation (NFV); Architectural Framework. GS NFV 002 V1.1.1. link ↗ | Moy, J. T. (1998). OSPF Version 2. RFC 2328. link ↗ |
| Aliasser | network virtualization, programmable networks | virtual network functions, network slicing | link-state routing, intra-domain routing |
| Relaterede≠ | 4 | 2 | 2 |
| Resumé≠ | 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. | 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. | OSPF is a link-state interior gateway protocol (IGP) for routing within an autonomous system. Introduced by John Moy in 1998, OSPF converges faster than distance-vector protocols and supports equal-cost multipath (ECMP). It remains widely deployed in enterprise and ISP networks for intra-domain routing, though IS-IS is increasingly preferred in large backbones. |
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