6G Zukunftslabor Bayern – 6G Future Lab Bavaria

6G Fundamental Research


The Chair of Network Architectures and Network Services contributes specific testbed setups for reproducible wired and wireless network research for the 6G testbed for the Industry 4.0 application focus. The infrastructure for reproducible experiments includes a testbed orchestration service, flexible and programmable traffic generators, hardware-based time synchronization with PTP support, IEEE TSN support (TAS, ATS), Virtualization with SR-IOV, IOMMU and Multiqueue SmartNICs, P4 programmability with different targets, and different Wireless NIC and Shielding Boxes.

With the programmable SmartNICs and switches in the testbed, servers with different architectures (multicore and manycore), and different virtualization and measurement functionalities, different distribution of network functions between standard servers, SmartNICs and switches can be investigated. Among other things, the influences of different architectures and configurations and the effects of component failures and attacks in terms of data rates, latency, robustness and availability can be investigated.

The usage of programmable SmartNICs and network elements also makes a significant contribution to Digital Sovereignty. The programmable components and associated tools used provide a technological platform, tool chain, and implementation concepts for Digital Sovereignty in 6G. The relevant stakeholders, in particular government and public authorities or enterprises, should thus be able to make digitally sovereign decisions and act with regard to infrastructure, data, algorithms, hardware, and software. The following dimensions of digital sovereignty are strengthened: competencies, data, governance, and software and hardware technologies. Competencies relate to the capabilities of individuals, organizations, and nations. Due to the high pace of innovation in mobile, especially 6G, technical universities have a key role to play in developing the key competencies required for Digital Sovereignty and transferring them to key points of value creation via graduates as well as via collaborations with industry.

Data sovereignty is not only of utmost importance for artificial intelligence and machine learning, but also to leverage innovation potential. Data sovereignty ensures being able to include or exclude third parties from accessing data on a contractual basis and to enable or prevent the processing and analysis of data. Governance to achieve or maintain digital sovereignty includes regulatory measures at national, European and international level. Technological sovereignty with regard to hardware, software and architecture includes having a choice of alternative solutions for required functionality provided by trustworthy organizations, together with full documentation of architecture and interfaces, transparency and traceability of the functions included, which provides extensive opportunities for validating components, systems and services.


Related publications

2024-06-01 Marcel Kempf, Nikolas Gauder, Benedikt Jaeger, Johannes Zirngibl, Georg Carle, “A Quantum of QUIC: Dissecting Cryptography with Post-Quantum Insights,” in International Federation for Information Processing (IFIP) Networking Conference 2024, Thessaloniki, Greece, Jun. 2024. [Preprint] [Bib]
2024-06-01 Eric Hauser, Sebastian Gallenmüller, Georg Carle, “RO-Crate for Testbeds: Automated Packaging of Experimental Results,” in International Federation for Information Processing (IFIP) Networking Conference 2024 - SLICES Workshop, Thessaloniki, Greece, Jun. 2024. [Preprint] [Bib]
2024-05-01 Lars Wüstrich, Sebastian Gallenmüller, Stephan Günther, Georg Carle, Marc-Oliver Pahl, “Shells Bells: Cyber-Physical Anomaly Detection in Data Centers,” in 2024 IEEE/IFIP Network Operations and Management Symposium (NOMS 2024), Seoul, Korea, May 2024. [Pdf] [Bib]
2024-03-01 Filip Rezabek*, Marcin Bosk*, Leander Seidlitz, Jörg Ott, Georg Carle, “Context Matters: Lessons Learned from Emulated and Simulated TSN Environments,” in 3rd International Workshop on Negative Results in Pervasive Computing (PerFail 2024), Biarritz, France, Mar. 2024. [Pdf] [Bib]
2024-01-01 Henning Stubbe, Sebastian Gallenmüller, Georg Carle, “The pos Experiment Controller: Reproducible & Portable Network Experiments,” in 2024 19th Wireless On-Demand Network Systems and Services Conference (WONS), 2024, pp. 1–8. [Pdf] [Preprint] [DOI] [Bib]
2023-12-01 Max Helm, Georg Carle, “Predicting Latency Quantiles using Network Calculus-assisted GNNs,” in Proceedings of the 2nd on Graph Neural Networking Workshop 2023, Paris, France, Dec. 2023, pp. 13–18. [Pdf] [Slides] [Rawdata] [DOI] [Bib]
2023-12-01 Markus Sosnowski, Florian Wiedner, Eric Hauser, Lion Steger, Dimitrios Schoinianakis, Sebastian Gallenmüller, Georg Carle, “The Performance of Post-Quantum TLS 1.3,” in Proc. International Conference on emerging Networking EXperiments and Technologies (CoNEXT), Paris, France, Dec. 2023. [Pdf] [Preprint] [Homepage] [Recording] [DOI] [Bib]
2023-11-01 Florian Wiedner, Alexander Daichendt, Jonas Andre, Georg Carle, “Control Groups Added Latency in NFVs: An Update Needed?,” in 2023 IEEE Conference on Network Function Virtualization and Software Defined Networks (NFV-SDN), Nov. 2023. [Pdf] [Homepage] [Bib]
2023-10-01 Max Helm, Georg Carle, “Synthesizing and Scaling WAN Topologies using Permutation-invariant Graph Generative Models,” in 19th International Conference on Network and Service Management (CNSM 2023), Niagara Falls, Canada, Oct. 2023, p. 6. [Pdf] [Slides] [Rawdata] [Bib]
2023-06-01 Benedikt Jaeger, Johannes Zirngibl, Marcel Kempf, Kevin Ploch, Georg Carle, “QUIC on the Highway: Evaluating Performance on High-Rate Links,” in International Federation for Information Processing (IFIP) Networking 2023 Conference (IFIP Networking 2023), Barcelona, Spain, Jun. 2023. [Preprint] [Rawdata] [DOI] [Bib]
2023-06-01 Henning Stubbe, Sebastian Gallenmüller, Manuel Simon, Eric Hauser, Dominik Scholz, Georg Carle, “Keeping Up to Date With P4Runtime: An Analysis of Data Plane Updates on P4 Switches,” in International Federation for Information Processing (IFIP) Networking 2023 Conference (IFIP Networking 2023), Barcelona, Spain, Jun. 2023, p. 9. [Pdf] [DOI] [Bib]
2023-06-01 Manuel Simon, Sebastian Gallenmüller, Georg Carle, “Never Miss Twice - Add-On-Miss Table Updates in Software Data Planes,” in KuVS Fachgespräch - Würzburg Workshop on Modeling, Analysis and Simulation of Next-Generation Communication Networks 2023 (WueWoWAS’23), Würzburg, Germany, Jun. 2023, p. 5. Best Workshop Contribution [Pdf] [Preprint] [Slides] [DOI] [Bib]
2022-12-01 Benedikt Jaeger, Max Helm, Lars Schwegmann, Georg Carle, “Modeling TCP Performance Using Graph Neural Networks,” in Proceedings of the 1st International Workshop on Graph Neural Networking, New York, NY, USA, Dec. 2022, pp. 18–23. [Url] [Pdf] [Rawdata] [DOI] [Bib]
2022-12-01 Sebastian Gallenmüller, Florian Wiedner, Johannes Naab, Georg Carle, “How Low Can You Go? A Limbo Dance for Low-Latency Network Functions,” Journal of Network and Systems Management, vol. 31, no. 20, Dec. 2022. [Url] [Pdf] [Homepage] [DOI] [Bib]
2022-10-01 Max Helm, Florian Wiedner, Georg Carle, “Flow-level Tail Latency Estimation and Verification based on Extreme Value Theory,” in 18th International Conference on Network and Service Management (CNSM 2022), Thessaloniki, Greece, Oct. 2022. [Pdf] [Slides] [Bib]
2022-08-01 Eric Hauser, Manuel Simon, Henning Stubbe, Sebastian Gallenmüller, Georg Carle, “Slicing Networks with P4 Hardware and Software Targets,” in ACM SIGCOMM 2022 Workshop on 5G and Beyond Network Measurements, Modeling, and Use Cases (5G-MeMU ’22), Amsterdam, Netherlands, Aug. 2022. [Pdf] [DOI] [Bib]
2022-07-01 Sebastian Gallenmüller, Dominik Scholz, Henning Stubbe, Eric Hauser, Georg Carle, “Reproducible by Design: Network Experiments with pos,” in KuVS Fachgespräch - Würzburg Workshop on Modeling, Analysis and Simulation of Next-Generation Communication Networks 2022 (WueWoWas’22), Würzburg, Germany, Jul. 2022. [Pdf] [DOI] [Bib]
2022-06-01 Sebastian Gallenmüller, Eric Hauser, Georg Carle, “Prototyping Prototyping Facilities: Developing and Bootstrapping Testbeds,” in 2022 IFIP Networking WKSHPS: SLICES Scientific Instruments to support digital infrastructure science (IFIP Networking 2022 WKSHPS SLICES), Catania, Italy, Jun. 2022. [Pdf] [DOI] [Bib]
2022-05-01 Florian Wiedner, Max Helm, Sebastian Gallenmüller, Georg Carle, “HVNet: Hardware-Assisted Virtual Networking on a Single Physical Host,” in IEEE INFOCOM WKSHPS: Computer and Networking Experimental Research using Testbeds (CNERT 2022) (INFOCOM WKSHPS CNERT 2022), Virtual Event, May 2022. [Pdf] [DOI] [Bib]
2021-12-01 Manuel Simon, Henning Stubbe, Dominik Scholz, Sebastian Gallenmüller, Georg Carle, “High-Performance Match-Action Table Updates from within Programmable Software Data Planes,” in 4th P4 Workshop in Europe (EUROP4), Virtual Event, Dec. 2021. [Pdf] [Slides] [Recording] [DOI] [Bib]
2021-10-01 Sebastian Gallenmüller, Florian Wiedner, Johannes Naab, Georg Carle, “Ducked Tails: Trimming the Tail Latency of(f) Packet Processing Systems,” in 3rd International Workshop on High-Precision, Predictable, and Low-Latency Networking (HiPNet 2021), Izmir, Turkey, Oct. 2021. [Pdf] [Homepage] [Bib]

Finished student theses

Author Title Type Advisors Year Links
Felix Hahn Failure Detection through Active and Passive Techniques in P4 BA Manuel Simon, Eric Hauser 2023
Sebastian Faul Virtualized Testbed Infrastructure for Practical Network Experiment BA Sebastian Gallenmüller, Henning Stubbe, Florian Wiedner 2022
Maximilian Schwarzmaier Hardware Discovery Protocol Support for Programmable Switches BA Eric Hauser, Sebastian Gallenmüller 2022
Stefan Lachnit Comparison of Hardware Timestamping Facilities for 100G Networks MA Sebastian Gallenmüller, Henning Stubbe, Florian Wiedner, Eric Hauser 2022
Carlos Nechwatal Cache Efficient Hashing-Based Data Structures in P4 BA Manuel Simon, Sebastian Gallenmüller 2022
Jan Weßeling Event Processing in Software Data Planes BA Manuel Simon 2022
Matthias Michailow Implementation and Analysis of In-Network Computation in Programmable Data Planes MA Manuel Simon, Henning Stubbe, Sebastian Gallenmüller 2021
Stefan Lachnit Hardware Timestamping on 100G Network Cards IDP Sebastian Gallenmüller, Henning Stubbe, Florian Wiedner 2021