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| Protokol graničnog usmjeravanja (BGP)× | Otvoreni najkraći put (OSPF)× | Softverski definirano umrežavanje (SDN)× | |
|---|---|---|---|
| Područje | Telekomunikacije | Telekomunikacije | Telekomunikacije |
| Obitelj | Process / pipeline | Process / pipeline | Process / pipeline |
| Godina nastanka≠ | 1989 | 1998 | 2008 |
| Tvorac≠ | IETF Routing Protocols Working Group | John Moy | Nick McKeown et al. |
| Vrsta≠ | path-vector routing protocol | link-state routing protocol | programmable network paradigm |
| Temeljni izvor≠ | Rekhter, Y., Li, T., & Hares, S. (2006). A Border Gateway Protocol 4 (BGP-4). RFC 4271. link ↗ | Moy, J. T. (1998). OSPF Version 2. RFC 2328. link ↗ | 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 ↗ |
| Drugi nazivi | exterior gateway protocol, inter-domain routing | link-state routing, intra-domain routing | network virtualization, programmable networks |
| Srodne≠ | 2 | 2 | 4 |
| Sažetak≠ | BGP is the de facto standard routing protocol for interconnecting autonomous systems (ASs) on the Internet. Since its introduction in 1989, BGP has scaled the Internet to millions of routers and trillions of destinations. BGP is path-vector-based, using a flexible policy system to control route propagation and selection. While BGP convergence can be slow and policies complex, it remains the only viable protocol for Internet-scale inter-domain routing. | 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. | 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. |
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