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| Mạng định nghĩa bằng phần mềm (SDN)× | Open Shortest Path First (OSPF)× | |
|---|---|---|
| Lĩnh vực | Viễn thông | Viễn thông |
| Họ | Process / pipeline | Process / pipeline |
| Năm ra đời≠ | 2008 | 1998 |
| Người khởi xướng≠ | Nick McKeown et al. | John Moy |
| Loại≠ | programmable network paradigm | link-state routing protocol |
| Công trình gốc≠ | 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 ↗ | Moy, J. T. (1998). OSPF Version 2. RFC 2328. link ↗ |
| Tên gọi khác | network virtualization, programmable networks | link-state routing, intra-domain routing |
| Liên quan≠ | 4 | 2 |
| Tóm tắt≠ | 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. | 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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