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On the Move to Meaningful Internet Systems 2005: OTM 2005 Workshops

Volume 3762 of the series Lecture Notes in Computer Science pp 18-19

A Generic Approach to Dependability in Overlay Networks

  • Barry PorterAffiliated withComputing Department, Lancaster University
  • , Geoff CoulsonAffiliated withComputing Department, Lancaster University

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Abstract

Overlay networks are virtual communication structures that are logically “laid over” underlying hosting networks such as the Internet. They are implemented by deploying application-level topology maintenance and routing functionality at strategic places in the hosting network [1,2]. In terms of dependability, most overlays offer proprietary “self-repair” functionality to recover from situations in which their nodes crash or are unexpectedly deleted. This functionality is typically orthogonal to the purpose of the overlay, and a systematic and complete approach to dependability is rarely taken because it is not the focus of the work. We therefore propose to offer dependability as a service to any overlay.