Dynamic Quality of Service on IP Networks

  • Tippyarat Tansupasiri
  • Kanchana Kanchanasut
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 2662)


In this paper, we propose a dynamic QoS, D-QoS, model which allows the QoS requirements be reconfigured dynamically. A privilege user can request a network interruption to guarantee its own smooth traffic flow at the expense of possibly interruptions or blockages of other traffic flows. Based on the concept of active IP network, an interruption can be triggered by sending an active packet requesting for an interruption to the network. Under normal circumstances, our model provides DiffServ based on CBQ and, in case of an interruption, priority queue is employed. The two queuing mechanisms operate alternately in response to the programs sent via active packets. A prototype of the model has been successfully implemented where the two operation modes have been shown to operate satisfactorily. Details of the design and implementation of D-QoS and its evaluation are discussed in this paper.


Priority Queue Priority Level Random Early Detection Link Bandwidth Expedite Forwarding 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. 1.
    Blake, S., Black, D., Carlson, M., Davies, E., Wang, Z., Weiss, W.: An Architecture for Differentiated Service. RFC 2475 (December 1998)Google Scholar
  2. 2.
    IETF, Differentiated Services (DiffServ) Charter,
  3. 3.
    Nichols, K., Blake, S., Baker, F., Black, D.: Definition of the Differentiated Services Field (DS Field) in the IPv4 and IPv6 Headers. RFC 2474 (December 1998)Google Scholar
  4. 4.
    Tennenhouse, D.L., Smith, J.M., Sincoskie, W.D., Wetherall, D.J., Minden, G.J.: A Survey of Active Network Research. IEEE Communications Magazine (1997)Google Scholar
  5. 5.
    Murphy, D.M.: Building an Active Node on the Internet, Master’s thesis, MIT (1997)Google Scholar
  6. 6.
    Cho, K.: A Framework for Alternate Queueing: Towards Traffic Management by PC-UNIX Based Routers. In: Proceedings of USENIX 1998 Annual Technical Conference (1998)Google Scholar
  7. 7.
    Heinanen, J., Baker, F., Weiss, W., Wroclawski, J.: Assured Forwarding PHB Group. RFC 2597 (June 1999)Google Scholar
  8. 8.
    Davie, B., Charny, A., Bennett, J.C.R., Benson, K., Le Boudec, J.Y., Courtney, W., Davari, S., Firoiu, V., Stiliadis, D.: An Expedited Forwarding PHB (Per- Hop Behavior). RFC 3246 (March 2002)Google Scholar
  9. 9.
    Floyd, S., Jacobson, V.: Link-Sharing and Resource Management Models for Packet Network. IEEE/ACM Transactions on Networking 3(4) (August 1995)Google Scholar
  10. 10.
    Tirumala, A., Qin, F., Dugan, J., Ferguson, J.: ‘Iperf’ (May 2002),
  11. 11.
    Braden, B., Zhand, L., Berson, S., Herzog, S., Jamin, S.: Resource Reservation Protocol (RSVP) - Version 1 Functional Specification. RFC 2205 (September 1997)Google Scholar
  12. 12.
    Bernet, Y., Yavatkar, R., Baker, F., Zhang, L., Speer, M., Braden, R., Davie, B., Wroclawski, J., Felstaine, E.: FRC 2998. A Framework for Integrated Services Operation over Diffserv Networks (November 2000)Google Scholar
  13. 13.
    Detti, A., Listanti, M., Salsano, S., Veltri, L.: Supporting RSVP in a Differentiated Service Domain: an Architectural Framework and a Scalability Analysis. In: ICC 1999 (June 1999)Google Scholar
  14. 14.
    Quadros, G., Alves, A., Monteiro, E.: An Approach to Support Traffic Classes in IP Networks. In: Crowcroft, J., Roberts, J., Smirnov, M.I. (eds.) QofIS 2000. LNCS, vol. 1922, pp. 285–299. Springer, Heidelberg (2000)CrossRefGoogle Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2003

Authors and Affiliations

  • Tippyarat Tansupasiri
    • 1
  • Kanchana Kanchanasut
    • 1
  1. 1.Computer Science and Information Management Program, Asian Institute of TechnologyPathumthaniThailand

Personalised recommendations