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

Dec 14, 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 …

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 …

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 …

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

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 …

Jan 23, 2022 · That is defined by the P4 archticture, and if your P4 code is allowed to know the input port (it is in both v1model and TNA architectures), you can find out what the name of that field is, …

Sep 3, 2022 · The P4 program is written so that at least some such injected packets from the controller perform read or write operations on a P4 register array, and send a packet back to the controller. …