Nov 21, 2024 · A place to discuss the P4 Programming Language and Ecosystem

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 number of others are all P4_16 architectures, with the formally defined interfaces, coded in P4_16 language.

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 PISA made more sense to how you define the pipeline when talking about P4 14 -programmable targets.

Nov 7, 2024 · Folks, I am leading a research group at a university. 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 P4Studio before we can buy the hardware. The notification says there is a 20-business-day lead time for verification. Those …

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

Jul 9, 2024 · A place to discuss the P4 Programming Language and Ecosystem

May 30, 2023 · Wanted to follow up and confirm if I was understanding it properly: so multiple ternary matches would work but multiple lpm would not? I’m trying to perform some basic 5 tuple packet classification and I want to create a match action that involves all 5 fields as 5 keys for the classification rules. My initial thought was to just create a P4 table for it that uses 5 lpm types …

Oct 13, 2023 · This is as close to a “generic” P4 facility as you can get, although it still requires a little more than the core language and its standard library, since they do not provide any means to send a packet out, only to form the headers. In reality, this method has many limitations and is …

Jan 14, 2023 · Hello, I have started the simple_switch on an ubuntu server with the command (sudo simple_switch_grpc -i 0@enp0s25 app.json (where app.json is the json got from the compilation of p4 program from p4c)). The interface that I am using is enp0s25 (which is physical ethernet on the server) I have loaded the ICMP program from p4pi on the switch …

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 another system”. Therefore, the answer to your question differs from system to system and it is defined by the system’s P4 Architecture. Which one re you asking about? Most switch-like …