Dynamic Quality of Service Support in Virtual Private Networks

  • Yuxiao Jia
  • Dimitrios Makrakis
  • Nicolas D. Georganas
  • Dan Ionescu
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 3503)

Abstract

This paper presents a framework for the provision of dynamic Quality of Service (QoS) support in Virtual Private Networks (VPNs) running over an MPLS-enabled public network infrastructure. A Dynamic Bandwidth Allocation scheme that includes traffic estimators and the development of a resource reservation algorithm, capable of modifying the resource allocation in real-time, is used. Three traffic estimation algorithms are implemented and tested. This system can automatically adjust to the bandwidth size of a VPN tunnel. The technique is beneficial to Internet Service Providers (ISPs) and corporate users alike. The superior resource management achieved through the examined approach can produce lower costs for the users and higher profits to the ISP. Implementation and experimental evaluation of the technique, using our MPLS and Diffserv enabled Linux test-bed, confirmed its ability to provide better resource utilization.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    Cisco White Paper, Cisco MPLS Auto-Bandwidth Allocator for MPLS Traffic Engineering: A Unique New Feature of Cisco IOS Software, http://www.cisco.com/warp/public/cc/pd/iosw/prodlit/mpatb_wp.htm
  2. 2.
    Duffield, N.G., Goyal, P., Greenberg, A., Mishra, P.: A Flexible Model for Resource Management in Virtual Private Networks. In: ACM SIGCOMM 1999, Cambridge, MA, USA (October 1999)Google Scholar
  3. 3.
    Gallardo, J.R., Makrakis, D., Orozco-Barbosa, L.: Use of Alpha-Stable Self-Similar Stochastic Process for Modeling Traffic in Broadband Networks. Performance Evaluation 40(1-3), 71–98 (2000)MATHCrossRefGoogle Scholar
  4. 4.
    Gallardo, J.R., Makrakis, D., Angulo, M.: Dynamic Resource Management Considering the Real Behavior of Aggregate Traffic. IEEE Trans. On Multimedia 3(2), 177–185 (2001)CrossRefGoogle Scholar
  5. 5.
    Guerrero, M.L., Orozco-Barbosa, L., Makrakis, D.: Probabilistic Envelope Processes for alpha-Stable Self-Similar Traffic Models and their Application to Resource Provisioning. To appear in the Performance Evaluation JournalGoogle Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2005

Authors and Affiliations

  • Yuxiao Jia
    • 1
  • Dimitrios Makrakis
    • 2
  • Nicolas D. Georganas
    • 2
  • Dan Ionescu
    • 2
  1. 1.Nortel NetworksOttawaCanada
  2. 2.School of Information Technology & EngineeringUniversity of OttawaOttawaCanada

Personalised recommendations