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Prof. Dr. Holger Karl

Future Internet (Summer 2023)


This lecture is an attempt to capture current developments in Internet and networking research. It does not follow a standard agenda, it is heavily focused on research and goes over various, not necessarily well connected topics that are currently attracting a lot of attention in research and industrial development. There is no standard textbook; we shall pick and choose from recent publications. Topics will include: 

  • Architectures of routers and switches: From conventional to programmable switches 
  • Circuit-switched networking like optical networking: Technology, optimization aspects 
  • Congestion control beyond TCP 
  • Data center networking 
  • Network softwarization, e.g., Software-Defined Networking and Network Function Virtualization  

Given that this is highly research-focussed and tries to be up-to-date, this lecture is going to be a learning experience for everybody involved, in particular, the lecturer himself! Do not expect ultimate answers, rather expect questions. Also, to profit most from this lecture, it makes a lot of sense to read some of the research papers yourself.


This class is typical lecture + homework assignment class. Most probably, exams will happen as oral exams (depending on number of participants). The class will be taught in English! 

All material will be provided via Moodle. Please register for this course inMoodle

Time and place 

  • Monday, 17:00 - 18:30, HS 3
  • Tuesday, 17:00 - 18:30, HS 3


You really should have some background in computer networks in general. If you are unsure, please talk to Holger Karl and we can see whether the class still makes sense for you. There is also a self-assessment test to give you an idea about typical content that we assume you to at least have heard of. 


  • There will be individual oral exams; by appointment. 


Please check official web page for module relationship.