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Virtual Path Bandwidth Control Versus Dynamic Routing Control

  • I. Z. Papanikos
  • M. Logothetis
  • G. Kokkinakis
Chapter
Part of the IFIP Advances in Information and Communication Technology book series (IFIPAICT)

Abstract

Virtual Path Bandwidth (VPB) control and Virtual Circuit Routing (VCR) control are competitive control schemes for traffic management in ATM networks. The objective of both controls is to minimize the Call Blocking Probability (CBP) of the congested end-to-end links, under constraints posed by the transmission links capacity of the network. Firstly, we compare the performance of two VCR control schemes, the DAR and DCR, well-known in the environment of STM networks, considering several trunk reservation parameters and different control intervals. Secondly, we compare the performance of VPB control schemes with that of VCR control schemes, both under static and dynamic traffic conditions. Under static traffic conditions the efficiency of the two control schemes in minimizing the worst CBP of the network is examined, whereas under dynamic traffic conditions their response time is measured by means of simulation. In short, VPB control is more effective than VCR control when the traffic fluctuation is large while VCR control has a faster response time than VPB control.

Keywords

Virtual Path Bandwidth Control Dynamic Routing Control ATM networks 

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Copyright information

© IFIP International Federation for Information Processing 1996

Authors and Affiliations

  • I. Z. Papanikos
    • 1
  • M. Logothetis
    • 1
  • G. Kokkinakis
    • 1
  1. 1.University of PatrasWire Communications Laboratory, Dept. of Electrical and Computer EngineeringPatrasGreece

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