Intern
Lehrstuhl für Informatik III

SDN - Reliabilty, Availabilty & Serviceability (SDN-RAS²)


Researchers

Dr. Florian Wamser,
Christopher Metter, M.Sc.,
  Dip.-Inf. Valentin Burger

SDN-RAS²: Kick-off

27.07.2016

Our new Project "SDN-RAS²" has been started today. This project focuses on Fast failure Detection in Software-Defined Networks and is a successor to our "SDN-RAS" project. We are looking forward to continue the cooperation with our partner.

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Summary

The need to more flexibility in the management and control of today’s networks led to the development of new networking paradigms like Software-Defined Networking (SDN) and Network Function Virtualization (NFV). The SDN paradigm introduces a more flexible control of networks by separating the network control and data plane, and logically centralizing the control plane on the so-called SDN controller. The interaction between control and data plane is typically realized by a communication using a standardized protocol like OpenFlow.

The application of this SDN paradigm in operational networks assumes that the reliability and availability is ensured. For today’s network operators, this is one of the most important criteria when introducing SDN. To this end, therefore, sophisticated measures and innovative mechanisms are needed to ensure the required reliability and availability.

A recent idea in this context is based the following saying: “Fail fast is more important than fail-safe”. This means, it is more important to detect errors quickly than to build a system that is 100% accurate and faultless. The latter is de-facto not possible in an operational system, which constantly changes and receives updates. For such an approach enhanced analytics of the network including its devices is a mandatory requirement as it has to be known exactly which component has failed.

The objective of the project is to study and analyze of fast fault detection and localization techniques for SDN.


Related publications of other projects

  • Metter, C., Seufert, M., Wamser, F., Zinner, T., Tran-Gia, P.: Analytical Model for SDN Signaling Traffic and Flow Table Occupancy and its Application for Various Types of Traffic. IEEE Transactions on Network and Service Management. 14, 603-615 (2017).
     
  • Metter, C., Seufert, M., Wamser, F., Zinner, T., Tran-Gia, P.: Analytic Model for SDN Controller Traffic and Switch Table Occupancy. 12th International Conference on Network and Service Management (CNSM). , Best Paper Award, Montreal, Canada (2016).
     

Student projects and theses

  • Metter, C., Seufert, M., Wamser, F., Zinner, T., Tran-Gia, P.: Analytical Model for SDN Signaling Traffic and Flow Table Occupancy and its Application for Various Types of Traffic. IEEE Transactions on Network and Service Management. 14, 603-615 (2017).
     
  • Bott, L.: Implementing Backup Paths and Recovery Strategies in an SDN controlled by ONOS, (2017).
     
  • Knapp, T.: Extending the Monitoring Features of ONOS, (2017).
     
  • Supervisor: Metter, C.: Towards OFCProbe 2.0, (2017).
     
  • Abd El Hai, S.: Measuring the Applicability of the Analytic Model for SDN Controller Traffic and Switch Table Occupancy, (2017).
     
  • Knapp, T.: Assessment of the ONOS SDN Controller in Case of Network Errors, (2016).
     
  • Rachor, C.: Testbed-based RAS Evaluation in SDN using ONOS, (2015).
     
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