Communication Networks

Steffen Lindner, M.Sc.

Researcher & PhD Student

Telefon +49 7071 29-70545
Telefax +49 7071 29-5220
E-Mail steffen.lindnerspam prevention@uni-tuebingen.de
Raum B303
Anschrift

Lehrstuhl für Kommunikationsnetze

Universität Tübingen

Wilhelm-Schickard-Institut für Informatik

Sand 13, 72076 Tübingen


Due to the pandemics, I am working sometimes from home; please send me an email when you can't reach me on the phone!

I'm a researcher and PhD student at the Chair of Communication Networks at University of Tübingen. Previously, I studied computer science (Bachelor's and Master's degree 2014-2019) at University of Tübingen.

2014 - 2017
B.Sc. Informatik

Graduated at University of Tübingen: 1.4

2017 - 2019
M.Sc. Informatik

Graduated at University of Tübingen: 1.0

Since September 2019
Research assistant

Research assistant at the Department of Computer Science, Chair of Communication Networks, University of Tübingen

Research Interests

Software-Defined Networks

Software-Defined Networking (SDN) is an emerging architecture that is dynamic, manageable, cost-effective, and adaptable, making it ideal for the high-bandwidth, dynamic nature of today’s applications. This architecture decouples the network control and forwarding functions enabling the network control to become directly programmable and the underlying infrastructure to be abstracted for applications and network services. 

P4: Programming Protocol-Independent Packet Processors

P4 is a programming language for controlling packet forwarding planes in networking devices, such as routers and switches. In contrast to a general purpose language such as C or Python, P4 is a domain-specific language with a number of constructs optimized for network data forwarding.

Congestion Management

Network congestion in data networking and queueing theory is the reduced quality of service that occurs when a network node or link is carrying more data than it can handle. Typical effects include queueing delay, packet loss or the blocking of new connections. A consequence of congestion is that an incremental increase in offered load leads either only to a small increase or even a decrease in network throughput.

Teaching

Courses

Winter Term 2020/2021

  • Programmierprojekt (Supervising)

Summer Term 2020

Winter Term 2019/2020

  • Programmierprojekt (Supervising)

Summer Term 2019

 

Supervised Theses and Student Research Projects

Ongoing 

B.Sc. Entwurf und Analyse eines Software-Projektes für das Tübinger Teamprojekt: Implementierung eines DNS Servers
M.Sc. Implementation and Evaluation of an Alternative Best Effort Traffic Scheduler in the Linux Network Stack

 

Concluded 

B.Sc.

Comparison and Analysis of Data Center Routing with RIFT and OSPF

M.Sc. Design and Implementation of a RAP Prototype for the Centralized Network/Distributed User Model in TSN

Project Work

KITOS

KITOS develops concepts for the management of TSN-based networks supported by artificial intelligence (AI).
In the project, the consortium partners develop AI algorithms that give networks the necessary dynamics and reliability for industry 4.0 scenarios and allow users to use them easily and without in-depth network or AI knowledge. Intelligent tools support decision making, allow more efficient use of resources and enable higher performance configurations. For active operation, the network management is secured against failures with AI-supported error detection and adaptation mechanisms.

List of Publications

Conference Paper

  1. D. Merling, S. Lindner, and M. Menth: Comparison of Fast-Reroute Mechanisms for BIER-Based IP Multicast, (preprint), in Prodeedings of the International Conference on Software Defined Systems, June 2020, Paris, France.

Workshop Paper

  1. S. Lindner, D. Merling, M. Häberle, and M. Menth: P4-Protect: 1+1 Path Protection for P4, (preprint), in Proceedings of the 3rd P4 Workshop in Europe in conjunction with ACM CoNEXT 2020, December 2020, Barcelona, Spain.
  2. S. Lindner, M. Haeberle, F. Heimgaertner, N. Nayak, S. Schildt, D. Grewe, H. Loehr, and M. Menth: P4 In-Network Source Protection for Sensor Failover, (preprint), in Proceedings of the International Workshop on Time-Sensitive and Deterministic Networking (TENSOR) in conjunktion with IFIP Networking 2020, June 2020, Paris, France.

Talks

  1. S. Lindner, M. Haeberle, D. Merling, and M. Menth: P4-Protect: 1+1 Path Protection for P4,  2. KuVS Fachgespräch Network Softwarization, Tübingen, Deutschland, April 2020.

Theses

M.Sc. Design and P4-Based Implementation of Scalable and Resilient BIER and BIER-TE for Large IP Multicast Networks, Master-Thesis, Eberhard Karls University Tübingen, Chair of Communication Networks, March 2019 (pdf)
B.Sc. Performance Evaluation of an Alternative Best Effort Traffic Class Offering Loss/Delay Differentiation, Bachelor-Thesis, Eberhard Karls University Tübingen, Chair of Communication Networks, August 2017