A methodological approach to an extensive analysis of DQDB performance and fairness

  • Authors:
  • M. Conti;E. Gregori;L. Lenzini

  • Affiliations:
  • CNR-Inst. CNUCE, Pisa;-;-

  • Venue:
  • IEEE Journal on Selected Areas in Communications
  • Year:
  • 2006

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Abstract

A distributed queue dual bus media access control (DQDB MAC) protocol state machine is described. The DQDB mathematical models and the tools used for their solution are introduced. The workload characterization is shown, and fairness metrics and performance indexes are defined. An analysis in underload and overload conditions is described, and the influence of the DQDB internal mechanisms is discussed. The asymptotic analysis is reported. DQDB behavior at higher speeds is analyzed