SANDS: Specialized Active Networking for Distributed Simulation

  • Authors:
  • M. Dorsch;Z. Ge;M. Keaton;J. Shapiro

  • Affiliations:
  • -;-;-;-

  • Venue:
  • DANCE '02 Proceedings of the 2002 DARPA Active Networks Conference and Exposition
  • Year:
  • 2002

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Abstract

This paper provides an overview of SANDS (SpecializedActive Networking for Distributed Simulation), a DARPA-ITOsponsored research project that is using active networking todevelop a new approach to real-time, content-basedinformation dissemination.Our approach is based on the useof active interest filtering, a publish/subscribe mechanism thatuses active networks technology to install and controldynamically-established content-based filters in intermediateactive routers in an IP multicast distribution tree.Active filtersprune unneeded information as early as possible in thedistribution tree, ensuring that only data desired (i.e.,subscribed to) by a receiver actually reaches that receiver. Inthis paper, we describe active interest filtering, the per-nodealgorithms that implement active filtering, and the signalingprotocol that installs interest filter state in the active routers.We describe our prototype implementation effort and presentmeasurements from a working prototype that demonstrate theadvantages of active interest filtering in a large-scale ModSAFdistributed simulation scenario.