University of Duisburg-Essen / Institute for Experimental Mathematics / Computer Networking Technology Group


University of Duisburg-Essen
Institute for Experimental Mathematics
Homepage of Thomas Dreibholz

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Priv.-Doz. Dr. Thomas Dreibholz

Researcher and Developer for Computer Networks

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Overview


My Curriculum Vitae


My Research Work

NorNet – A Real-World, Large-Scale Multi-Homing Testbed

Multi-homing denotes the simultaneous connection of endpoints (e.g. cloud server, smartphone, etc.) to multiple Internet Service Providers (ISP). That is, the endpoints remain reachable even when some of the ISPs have problems (e.g. malfunction of hardware or break of cables). Besides the redundancy aspect, multi-homing can also provide load sharing among the access links, in order to increase the application bandwidths. The fast-growing need for and deployment of resilience-critical applications makes large-scale testing and evaluation in realistic Internet setups necessary. NorNet is a platform for such experiments, providing programmable nodes distributed over Norway and – in the near future – further nodes distributed all over the world.
For more details on NorNet, see NorNet – A Real-World, Large-Scale Multi-Homing Testbed!

Stream Control Transmission Protocol (SCTP)

The Stream Control Transmission Protocol (SCTP) is an advanced Transport Layer protocol which may some day replace TCP. Focus of my research on SCTP is the optimisation of Concurrent Multipath Transfer (CMT), which means to simultaneously utilise multiple paths within the network to increase the application data throughput. This particularly also includes topics like congestion control and the fairness of resource sharing. Besides my research work on CMT-SCTP, I am also involved in the IETF standardisation process of this protocol extension.
For more details on my project, see The SCTP Project Page!
For more details on my habilitation, see My Habilitation!

Reliable Server Pooling (RSerPool)

Reliable Server Pooling (RSerPool) denotes a new IETF standard for the management of server pools and sessions with these pools. This standard provides both, high reliability (by redundancy of servers) as well as load balancing (by appropriate distribution of requests to the servers in a pool). For that purpose, RSerPool works on the Session Layer of the OSI model. I am actively involved in the IETF standardisation of RSerPool, in form of my Open Source implementation rsplib as reference implementation of the IETF Working Group, my simulation model rspsim in OMNeT++, as well as various research works and IETF contributions.
For more details on my project, see The rsplib Project Page!

Flow Routing

Flow routing is a novel concept for efficient high-speed routing. Combining the flow routing concept with Quality of Service (QoS), a network can efficiently cope with the requirements of modern multimedia applications. The main goal of our flow routing project is to develop, evaluate and finally also standardise a QoS concept for assuring the bandwidth requirements of multimedia applications – requiring only minimal signalling overhead.
For more details on this project, see The Flow Routing Project Page!


My Publications

The complete BibTeX references in a single file can be found here!

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My Software Projects


My Research Projects

Useful Stuff


15.11.2014 Thomas Dreibholz, University of Duisburg-Essen / Institute for Experimental Mathematics / Computer Networking Technology Group

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