Software-Defined Networks (SDN) are transforming the Internet by replacing bundled, proprietary hardware and control software. SDN is being embraced by cloud providers, telcos, and enterprises, as it enables a new era of innovation in networking. This book provides a comprehensive introduction to SDN from the perspective of those who are developing and leveraging the technology. Book Features: - Describes a complete SDN stack, illustrated with example open source software. - Emphasizes underlying concepts, abstractions, and design rationale. - Describes both fixed-function and programmable switching chips. - Describes the P4-based toolchain for programming and controlling switches. - Describes a range of SDN use cases: enterprises, datacenters, access networks

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