Design of Statistical-QoS VPN in IP Networks

  • Lee, Hoon (Dept. of Information and Communication Engineering, Changwon National University) ;
  • Uh, Yoon (Dept. of Information and Communication Engineering, Changwon National University)
  • 발행 : 2002.05.01

초록

In this paper the authors propose a theoretic framework to design the Virtual Private Network (VPN) via which the Quality of Services (QoSs) are guaranteed over IP networks. The required QoS is a very strict packet loss probability or a probability that packet delay does not exceed a certain target value in a statistical manner. QoSs are guaranteed by providing a statistical bandwidth similar to equivalent bandwidth, which is computed so that the provided bandwidth is sufficient to guarantee those requirements. Two typical network architectures are considered in constructing VPN, the customer pipe scheme and the Hose scheme, and we propose a method to compute the amount of the required bandwidth for the two schemes. Finally, we investigate the implication of the scheme via numerical experiments.

키워드

참고문헌

  1. R.G. Addie, 'On the applicability and utility of Gaussian models for broadband traffic', Faculty of Sciences, USQ, Working Paper Series SC-MC-9815
  2. N. Anerousis, 'Dynamic virtual network dimensioning in cost-sensitive environments', Proceedings of G1obecom'99, 1999
  3. N.G. Duffield, P. Goyal and A. Greenberg, 'A Flexible model for resource management in Virtual Private Networks', ACM SIGCOMM'99
  4. S. Fotedar, et.al., 'ATM virtual private networks', Communications of ACM, Vo1.38, No.2, February 1995
  5. H. Hosogoezawa, S. Yoneda and T. Aoki, 'An IP network design rule to meet QoS demands of users', Technical Report of IEICE CS99-153 (2000-02)
  6. H. Lee, J.H. Eom and Y.C. Baek, 'A Usage-Rate Based Charging for QoS-Free Traffic in IP-VPN', KT Journal, Vol.6, No.3, December 2001
  7. H. Lee, et. al., 'Estimation of generated traffic for the KORNET leased-line users', Internal Report of KT Telecommunications Network Lab., June 2000
  8. Revised draft Recommendation Y.1541, 'Internet protocol communication services-IP performance and availability objectives and allocations', Temporary document (WP4/13), Q.13, ITU-T, November 20-24, 2000
  9. Amit Kumar, 'Algorithms for provisioning VPNs in the Hose model', ACM SIGCOMM '01, August 27-31, 2001, San Diego, California USA
  10. J-S Li, 'Measurement and in-service monitoring for QoS violations and spare capacity estimations in ATM network', Computer Communications, 23 (2000)
  11. Z. Sahinoglu and S. Tekinay, 'On multimedia networks: Self-similar traffic and network performance', IEEE Communications Magazine, January 1999
  12. S.M. Yang, 'Fractal characteristics in KORNET traffic', Korea Telecom TM, 1999
  13. H. Yokoi and T. Tsuchiya, 'VP bandwidth design based on estimation of queue length distribution in a buffer', Technical Report of IEICE SSE99-16 (1999-05)