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| Multiprotocol Label Switching (MPLS)× | Giao thức Cổng Biên (BGP)× | Open Shortest Path First (OSPF)× | |
|---|---|---|---|
| Lĩnh vực | Viễn thông | Viễn thông | Viễn thông |
| Họ | Process / pipeline | Process / pipeline | Process / pipeline |
| Năm ra đời≠ | 2001 | 1989 | 1998 |
| Người khởi xướng≠ | IETF MPLS Working Group | IETF Routing Protocols Working Group | John Moy |
| Loại≠ | label-based forwarding paradigm | path-vector routing protocol | link-state routing protocol |
| Công trình gốc≠ | Rosen, E. C., Viswanathan, A., & Callon, R. (2001). Multiprotocol Label Switching Architecture. RFC 3031. link ↗ | 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 ↗ |
| Tên gọi khác | label switching, traffic engineering | exterior gateway protocol, inter-domain routing | link-state routing, intra-domain routing |
| Liên quan≠ | 4 | 2 | 2 |
| Tóm tắt≠ | 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. | 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. |
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