Nov 11, 2025 · A place to discuss the P4 Programming Language and Ecosystem

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 concept of …

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 stored in the …

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

Mar 17, 2026 · I’m working with a P4 programmable switch (Intel Tofino-based) and using Open P4 Studio (SDE). I need to monitor the memory usage of my match-action tables, specifically the TCAM …

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 downloading and …

Nov 7, 2024 · We want to use P4 for CPS applications and are in the process of purchasing two Tofino2 switches. For that, I recently applied for the Intel Connectivity Research Program to obtain the Intel …

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, T2NA and a …

Nov 24, 2025 · A place to discuss the P4 Programming Language and Ecosystem

Sep 23, 2025 · Hi all, I’m new to the P4 ecosystem and have been exploring the available backends for the P4C compiler. However, I haven’t found anything suitable for developing HDL for FPGAs. During …