Leonhard Nobach, M.Sc.

Phone: +49 (0) 6151 16 20893
E-Mail: Leonhard.Nobach@...

8 Private Questions (in german)


Leo obtained his master's degree at the TU Darmstadt in 2012. After taking part in a one-year graduate programme in business, he joined the Peer-to-Peer Systems Engineering Lab of Prof. Dr. David Hausheer in October 2013. During this time, Leo also worked as a Ph.D. intern at Nokia Bell Labs for 4 months. In May 2017, Leo joined KOM.

Research Interests

Leo's work focuses on Network Functions Virtualization (NFV). Here, his areas of expertise include virtualization performance, state migration, dataplane and packet switching hardware and NFV hardware acceleration. Furthermore, he has experience in software-defined networks, communication security, and mobile peer-to-peer networks.

Video courtesy of Layer123 at NFV World Congress 2015, San Jose

Special Technical Knowledge and Experience

  • Linux (with a focus on networking)
  • Data Plane Development Kit (DPDK)
  • NetFPGA
  • KVM Virtualization Environments
  • Ethernet Data Link an Physical Layer





Leonhard Nobach, Ivica Rimac, Volker Hilt, David Hausheer: Statelet-Based Efficient and Seamless NFV State Transfer. In: IEEE Transactions on Network and Service Management (TNSM), vol. 14, no. 4, pp. 964-977, Dec. 2017.


Leonhard Nobach, Jeremias Blendin, Hans-Jörg Kolbe, Georg Schyguda, David Hausheer: Bare-Metal Switches And Their Customization And Usability In A Carrier-Grade Environment. In: Proc. 42st IEEE Conference on Local Computer Networks (LCN), p. 649-657, IEEE, October 2017. 


Leonhard Nobach, Ivica Rimac, Volker Hilt, David Hausheer: SliM: Enabling Efficient, Seamless NFV State Migration. In: IEEE International Conference on Network Protocols (ICNP), November 2016.


Leonhard Nobach, Benedikt Rudolph, David Hausheer: Benefits of Conditional FPGA Provisioning for Virtualized Network Functions. In: Workshop on Software-Defined Networking and Network Functions Virtualization for Flexible Network Management (SDNFlex 2017), March 2017.


Leonhard Nobach, Oliver Hohlfeld, David Hausheer: New Kid on the Block: Network Functions Virtualization: From Big Boxes to Carrier Clouds (Editorial). In: ACM Computer Communications Review (CCR), July 2016.


Leonhard Nobach, David Hausheer: PrivateShare: Measuring Device-to-Device User Behavior and Transmission Quality. In: IEEE/IFIP Network Operations and Management Symposium (NOMS 2016), April 2016.


Leonhard Nobach, Yannick Le Louédec, David Hausheer: Evaluating Device-to-Device Content Delivery Potential on a Mobile ISP's Dataset. In: 11th International Conference on Network and Service Management (CNSM 2015), November 2015. dx.doi.org/10.1109/CNSM.2015.7367375


Leonhard Nobach, David Hausheer: Open Elastic Provisioning of Hardware Acceleration in NFV Environments. In: Workshop on Software-Defined Networking and Network Function Virtualization for Flexible Network Management (SDNFlex 2015), March 2015.


Leonhard Nobach, David Hausheer: Towards Decentralized, Energy- and Privacy-aware Device-to-Device Content Delivery. 8th International Conference on Autonomous Infrastructure, Management and Security (AIMS 2014), June 2014.

[LRF+17]Patrick Lieser, Nils Richerzhagen, Tim Feuerbach, Leonhard Nobach, Doreen Böhnstedt, Ralf Steinmetz:
Take it or Leave it: Decentralized Resource Allocation in Mobile Networks. In: Proc. 42st IEEE Conference on Local Computer Networks (LCN) (accepted for publication), p. 1-8, IEEE, October 2017.
[SGN+13]Dominik Stingl, Christian Gross, Leonhard Nobach, Ralf Steinmetz, David Hausheer:
BlockTree: Location-Aware Decentralized Monitoring in Mobile Ad Hoc Networks. In: Damla Turgut, Nils Aschenbruck, Jens Tölle: Proceedings of the 38th IEEE Conference on Local Computer Networks (LCN), p. 505-513, IEEE Computer Society, October 2013. ISBN 978-1-4799-0537-9.
[SGR+11]Dominik Stingl, Christian Groß, Julius Rückert, Leonhard Nobach, Aleksandra Kovacevic, Ralf Steinmetz:
PeerfactSim.KOM: A Simulation Framework for Peer-to-Peer Systems. In: Waleed W. Smari: Proceedings of the 2011 International Conference on High Performance Computing & Simulation (HPCS 2011), p. 577-584, IEEE, July 2011. ISBN 978-1-61284-382-7. 


Identity: leonhard.nobach@kom...

Primary Key: 4096R/FFC01FC4 (FP:02AD 30B6 4483 BDBB 04C0 E6B4 D21A EB87 FFC0 1FC4)

Backup Key (do not yet use for encrypting content): 4096R/5483883C (FP: 6278 0399 1084 E23F 5DAA 31B9 56B9 5499 5483 883C)


Software projects I am working on:

  • SliM - DPDK-based seamless NFV state migration framework
  • PS's base platform for using the NetFPGA SUME 10 Gigabit Ethernet ports with arbitrary network functions
  • Sloth - DPDK-based latency generator.