Synchronized network emulation: matching prototypes with complex simulations

  • Authors:
  • Elias Weingärtner;Florian Schmidt;Tobias Heer;Klaus Wehrle

  • Affiliations:
  • RWTH Aachen University;RWTH Aachen University;RWTH Aachen University;RWTH Aachen University

  • Venue:
  • ACM SIGMETRICS Performance Evaluation Review
  • Year:
  • 2008

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Abstract

Network emulation, in which real systems interact with a network simulation, is a common evaluation method in computer networking research. Until now, the simulation in charge of representing the network has been required to be real-time capable, as otherwise a time drift between the simulation and the real network devices may occur and corrupt the results. In this paper, we present our work on synchronized network emulation. By adding a central synchronization entity and by virtualizing real systems for means of control, we can build-up network emulations which contain both unmodified x86 systems and network simulations of any complexity.