方法对比
并排查看您选择的方法；存在差异的行会高亮显示。
| 软件定义网络 (SDN)× | 多协议标签交换 (MPLS)× | 开放最短路径优先 (OSPF)× | |
|---|---|---|---|
| 领域 | 电信 | 电信 | 电信 |
| 方法族 | Process / pipeline | Process / pipeline | Process / pipeline |
| 起源年份≠ | 2008 | 2001 | 1998 |
| 提出者≠ | Nick McKeown et al. | IETF MPLS Working Group | John Moy |
| 类型≠ | programmable network paradigm | label-based forwarding paradigm | link-state routing protocol |
| 开创性文献≠ | 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 ↗ | Rosen, E. C., Viswanathan, A., & Callon, R. (2001). Multiprotocol Label Switching Architecture. RFC 3031. link ↗ | Moy, J. T. (1998). OSPF Version 2. RFC 2328. link ↗ |
| 别名 | network virtualization, programmable networks | label switching, traffic engineering | link-state routing, intra-domain routing |
| 相关≠ | 4 | 4 | 2 |
| 摘要≠ | 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. | Multiprotocol Label Switching (MPLS) is a forwarding paradigm that prepends a short label to packets, enabling routers to make forwarding decisions based on the label rather than IP destination address. Introduced by IETF (2001), MPLS was designed to enable traffic engineering, VPN creation, and fast rerouting in IP networks. While MPLS complexity is high, it remains foundational in service provider backbones for traffic engineering and Quality of Service (QoS) provisioning. | 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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