Welcome to the official GitHub organization for the P4 Language Consortium. This organization hosts the open-source ecosystem for P4, a domain-specific language used to specify how data plane devices process packets.

Our ecosystem provides the tools needed to develop, compile, test, and control P4 programs.

• p4-spec: The official specification documents for the P4 language and its core architectures.
• p4c: The official reference compiler for the P4_16 programming language.
• p4mlir-incubator: An experimental project to integrate the MLIR compiler framework into P4C.
• p4-constraints: A framework for defining and enforcing constraints on P4 objects at runtime.

• behavioral-model: The reference P4 software switch, commonly referred to as bmv2.
• p4-dpdk-target: The P4 driver software for the P4 DPDK software target.
• open-p4studio: An open-source environment and implementation of P4Studio.

• p4runtime: The specification documents and protobuf definitions for the P4Runtime control-plane API.
• PI: An implementation framework for a P4Runtime server that acts as a bridge between the control plane and the data plane.
• ptf: The Packet Test Framework, a Python-based framework designed for data plane validation.

• .github: Organization-wide policy, governance documents, and issue templates.
• governance: Legal documents of the P4 Language Organization.

• tutorials: Practical exercises, virtual machine environments, and tutorials for learning the P4 language.
• project-ideas: A curated collection of ideas for prospective community and academic P4 projects.
• gsoc: Documentation and tracking for the P4 organization's participation in Google Summer of Code.

The following repositories have been archived and are maintained in a read-only state for historical purposes. They are no longer actively developed.

• p4factory: An early development environment for compiling P4 programs and building software switches.
• p4c-bm: The legacy compiler preprocessor designed for the P4 behavioral model.
• p4-hlir: The Python source code for parsing the older P4_14 standard and producing the High-Level Intermediate Representation.
• p4c-behavioral: The original C-based reference compiler implementation for the P4 language.
• switch: A consolidated switch repository containing the legacy switch.p4 sample program and associated libraries.
• ntf: The legacy Network Test Framework previously used for software switch testing.
• papers: A collection of historical academic papers and demonstrations related to the initial development of P4.