Space-efficient fault-containment in dynamic networks

  • Authors:
  • Sven Köhler;Volker Turau

  • Affiliations:
  • Institute of Telematics, Hamburg University of Technology, Hamburg, Germany;Institute of Telematics, Hamburg University of Technology, Hamburg, Germany

  • Venue:
  • SSS'11 Proceedings of the 13th international conference on Stabilization, safety, and security of distributed systems
  • Year:
  • 2011

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Abstract

Bounding the impact of transient small-scale faults by self-stabilizing protocols has been pursued with independent objectives: Optimizing the system's reaction upon topological changes (e.g. super-stabilization), and reducing system recovery time from memory corruptions (e.g. fault-containment). Even though transformations adding either super-stabilization or fault-containment to existing protocols exist, none of them preserves the other. This paper makes a first attempt to combine both objectives. We provide a transformation adding faultcontainment to silent self-stabilizing protocols while simultaneously preserving the property of self-stabilization and the protocol's behavior in face of topological changes. In particular, the protocol's response to a topology change remains unchanged even if a memory corruption occurs in parallel to the topology change. The presented transformation increases the memory footprint only by a factor of 4 and adds O(1) bits per edge. All previously known transformations for faultcontaining self-stabilization increase the memory footprint by a factor of 2m/n.