The TFS#9 Hackfest will take place in Castelldefels 19-22 May 2026. It will explore the latest ETSI TeraFlowSDN developments, focusing on managing P4 devices via Barefoot Runtime (BfRt) APIs.

Overview

The TFS#9 Hackfest will be hosted by CTTC in their premises in Castelldefels, Barcelona, Spain, from 19-22 May 2026. The hackfest will be held in parallel with:

• TFS#9 Plenary 21 May 2026 - Register! (login required)

• F5G-F2F#26 Meeting 19-22 May 2026 - Register! (login required)

Venue

 CTTC - Building B4 - Auditorium
 Parc Mediterrani de la Tecnologia (PMT)
 Av. Carl Friedrich Gauss 7
 08860 - Castelldefels
 Barcelona, Spain

• Hotels Castelldefels
• Directions
• Local information
• VISA: Should you require a personal invitation letter for your visa application, please fill in this TFS#9 Visa Invitation Template and send it to Ricard Vilalta ricard.vilalta -at- cttc.es

Scope

The TFS#9 Hackfest is a hands-on event designed to foster collaboration among new and experienced TFS developers and users who will be working together with TeraFlowSDN.

The Hackfest will address the latest novelties in ETSI TeraFlowSDN, enabling the management of P4 devices using Barefoot Runtime (BfRt) APIs. It will consist of initial theoretical sessions, followed by hands-on tutorial-style sessions. Next, the hackers will be invited to resolve some challenges related to P4 BfRte.

The event will run from Tuesday to Friday with daily sessions.

The TFS#9 Hackfest will be collocated with the TFS#9 Plenary meeting as well as the F5G#26 Plenary meeting, making it an excellent opportunity for cross-community collaboration and networking.

Prerequisites

• Registration is mandatory, seats are limited!.

• Join the #hackfest9-2026-may channel in the TFS Community Slack Workspace

• You will need a laptop (Windows, Linux, Mac are fine) with:

  • An SSH Client Installed, e.g. MobaXTerm, PuTTY, etc.

  • VSCode with Remote Development Extension

  • ETSI VPN Client installed

    • You need to request a VPN account, if you do not already have one.

• ETSI will provide pre-configured VMs on their cloud (accessible through ETSI VPN) to all the participants.

Registration

Participation to TFS Hackfests is free and open to all upon registration. Seats are limited, book yours today!

Who should attend

• Researchers and developers working on SDN.
• Network engineers looking to explore P4-based service automation and related Barefoot Runtime (BfRt) API.
• Open source contributors interested in TeraFlowSDN, P4, and Network Slicing.
• Network engineers looking to explore L2VPN/L3VPN slicing automation.
• Anyone passionate about 5G/6G network orchestration and automation.

Agenda

Tuesday 19 November, 09:00-17:30

• 09:00 - 09:10 - Welcome & Logistics (ETSI)
• 09:10 - 09:30 - Tutorial: Getting Started with TeraFlowSDN (CTTC)
  • What are new SDN controllers?
  • Introduction to control and management protocols and data models
  • New features in Release 6
  • TFS Deployment
  • Basic operations
• 09:30 - 10:30 - Tutorial: Introduction to P4 and BfRt (UPM)
• 10:30 - 11:00 - Coffee break
• 11:00 - 13:00 - Hands-on: Using P4 and BfRt (UPM)
• 13:00 - 14:00 - Lunch break
• 14:00 - 15:00 - Keynote: Practical use (or Demo) of the P4 BfRt Extension for DETNET (TID)
• 15:00 - 15:15 - Coffee break
• 15:15 - 16:15 - Presentation of challenges and creation of teams
• 16:15 - 17:00 - Hacking session
• 17:00 - 17:30 - Day Wrap-up

Wednesday 20 May, 09:00-17:30

• 09:00 - 09:30 - Open Q&A / Progress Review / IT Logistics
• 09:30 - 10:00 - Tutorial:
• 10:00 - 10:30 - Coffee break
• 10:30 - 13:00 - Hacking session
• 13:00 - 13:55 - Lunch break
• 13:55 - 14:00 - Group Picture
• 14:00 - 14:30 - Tutorial:
• 14:30 - 17:00 - Hacking session
• 17:00 - 17:15 - Open Q&A + Progress Review
• 17:15 - 17:30 - Day Wrap-up

Thursday 21 May, 09:00-17:30

• 09:00 - 09:30 - Open Q&A / Progress Review / IT Logistics
• 09:30 - 10:00 - Tutorial:
• 10:00 - 10:30 - Coffee break
• 10:30 - 13:00 - Hacking session
• 13:00 - 14:00 - Lunch break
• 14:00 - 14:30 - Tutorial:
• 14:30 - 17:00 - Hacking session
• 17:00 - 17:15 - Open Q&A + Progress Review
• 17:15 - 17:30 - Day Wrap-up

Friday 22 May, 09:00-13:00

• 09:00 - 09:30 - Open Q&A / Progress Review / IT Logistics
• 09:30 - 10:00 - Final Hacking session
• 10:00 - 10:30 - Coffee break
• 10:30 - 12:00 - Presentation preparation
• 12:00 - 12:30 - Teams’ Presentations (5-6 min per team)
• 12:30 - 12:45 - Awards ceremony
• 12:45 - 13:00 - Hackfest Wrap-up
• 13:00 - 14:00 - Lunch break

Networking Dinner

• Thursday 21 May 2026 - Further details regarding the venue and program will be communicated in due course

Get involved in ETSI TeraFlowSDN

Learn how to join ETSI TFS

Contact

Please send your technical questions to TFS_TECH@list.etsi.org or join the TFS Community Slack Workspace

Questions about ETSI, joining TFS, this and future events can be sent to: SDGsupport@etsi.org