How to Build and Control a P4 Switch: A Practical Overview

This article introduces the P4 language and explains how a P4‑programmable switch is built, detailing its parser, ingress/egress pipelines, deparser, and the P4Runtime control interface, while highlighting the protocol‑independent, target‑independent, and high‑performance advantages for modern networks.

Data PlaneP4P4Runtime

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How to Build and Control a P4 Switch: A Practical Overview

UCloud Tech

Jun 27, 2018 · Cloud Native

How UCloud Leveraged P4 Programmable Switches to Revolutionize Cloud Networking

This article chronicles UCloud's evolution from early Open vSwitch‑based SDN to DPDK gateways, evaluates excluded VXLAN and OpenFlow solutions, and explains how adopting Barefoot's P4 programmable switches enabled higher performance, flexible control planes, sharding, and seamless grey‑release upgrades for its cloud network.

BarefootDPDKP4

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How UCloud Leveraged P4 Programmable Switches to Revolutionize Cloud Networking