May 21, 2025 · A place to discuss the P4 Programming Language and Ecosystem

Apr 2, 2023 · A P4 register is in some ways better named an “array”, if that makes it more familiar to you. It is an array of values, all with the same type. A read operation retrieves the value …

Dec 28, 2024 · The P4_16 language spec includes a sample P4_16 architecture, called “Very Simple Switch Architecture” to illustrate the necessary points. PSA, PNA, v1model, TNA, …

Jun 27, 2021 · Pick one of these: (a) I have an existing Ubuntu 16.04, 18.04, or 20.04 Linux system, and I want to install the open source P4 development tools on it (b) I am comfortable …

Feb 23, 2022 · The P4 16 language version (this is a perception more than a fact) seems to have put the PISA term aside. P4 16 also required the “architecture” concept (like V1Model) so the …

Mar 15, 2022 · P4 specification specifically says (in the section 1 “Scope”) that it does not define “Mechanisms by which data are received by one packet-processing system and delivered to …

May 14, 2022 · Hi, can someone plz explain how do tables work and what is the relation between key and actions?

Sep 5, 2023 · Hi everybody. I’m new with P4 and I’m wondering if it’s possible to run a P4 program inside a docker container. I tried the GitHub - cslev/p4-bmv2-docker: P4 BMV2 …

Oct 18, 2025 · While writing a P4 program on BMv2 (v1model), I encountered a conceptual issue. In the data plane, it seems natural to process multiple packets in parallel. However, when …

Mar 25, 2023 · I am new to P4 and I want to deploy P4 switches in a virtual environment (among multiple VMS, select the middle VM as the P4 switch) and I would like to ask if there is a better …