Distributed SDN in HAMNET

This project (done during the M.Sc.) explores the feasibility of deploying distributed SDN architectures over HAMNET (Highspeed Amateur Radio Multimedia Network) using IP routing protocols like OSPF. It compares centralized and distributed SDN setups in terms of resilience, scalability, and routing performance.

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Overview

• Institution: TU Ilmenau
• Author: Mamdouh Muhammad
• Supervision: M.Sc. Matthias Aumüller
• Topic: Distributed SDN over Wide Wireless Area Networks (WWAN)

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Implementation

• Tools:
  • Mininet for emulation
  • Ryu SDN controllers
  • RouteFlow + Quagga for routing
• Setup:
  • 80 hosts, 21 OpenFlow switches
  • 2 Ryu controllers with domain separation
  • Traffic rerouted via OSPF upon link failure

See Topology.py for full simulation code.

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Results

• Distributed SDN enables fast failover and better load distribution
• RouteFlow correctly maps IP routes into OpenFlow rules
• Resilient under link failure and scalable to multi-domain topologies

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Files

• BRP Paper.pdf – Brief technical report
• BRP Presentation.pptx – Presentation slides
• Topology.py – Custom Mininet topology script

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References

• Mininet
• RouteFlow
• Ryu Controller

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Contact: mamdouh.eac@gmail.com