The Journal of Korean Institute of Communications and Information Sciences (한국통신학회논문지)

The Korean Institute of Commucations and Information Sciences (한국통신학회)
권호 표지

Distributed Virtual Topology Adaptation Method to Support IP Traffic in WDM Mesh Networks

WDM Mesh 네트워크에서 IP 트래픽을 수용하기 위한 분산형 가상토폴로지 적응 기법

  • 김일래 (고려대학교 전자컴퓨터공학과 차세대 네트워크 연구실) ;
  • 이성근 (고려대학교 전자컴퓨터공학과 차세대 네트워크 연구실) ;
  • 이용원 (고려대학교 전자컴퓨터공학과 차세대 네트워크 연구실) ;
  • 장순혁 (한국전자통신연구원 광대역통합망연구단) ;
  • 이명문 (수원과학대학 정보통신과) ;
  • 박진우 (고려대학교 전자컴퓨터공학과 차세대 네트워크 연구실)
  • Published : 2007.01.31
Download PDF
⟨ Previous Next ⟩

Abstract

We propose a new approach to accommodate bidirectional asymmetric traffic demands as well as unexpected dynamic internet traffic variation in the WDM mesh network by using optical networking technologies. In the proposed scheme, an intermediate node determines the optical path based on the switching statistics of IP router of the node which characterizes the Internet traffic variation, which in effect provides a dynamic and distributed traffic control over the network. It is expected to reduce the efficiency deterioration of RWA(Routing and Wavelength Assignment) due to the real-time variation of Internet traffic so that expandability and flexibility of the network can be enhanced. In this paper, we describe a methodology for traffic behavior analysis at a node, and the decision policy of the establishment/release of optical path. In addition, we evaluate the performance of the proposed scheme through the computer simulations.

논문에서는 인터넷 트래픽 환경에서 예측하기 어려운 동적 트래픽은 물론 양방향 비대칭적 트래픽을 광 네트워킹 기술을 이용하여, WDM(Wavelength Division Multiplexing) Mesh 네트워크로 수용하는 방안을 제안한다. 제안된 방안에서는 중간 노드(intermediate node)에서 변동하는 인터넷 트래픽에 대한 IP 라우터의 스위칭 통계정보를 기반으로 새로운 광경로를 결정하도록 함으로써, 네트워크의 동적인 그리고 분산적인 트래픽 제어가 이루어지도록 하였다. 이로써 인터넷 트래픽의 실시간적 변동에 따른 RWA(Routing and Wavelength Assignment)의 효율성 열화 효과를 줄이면서 네트워크의 확장성과 유연성이 개선되도록 하였다. 본 논문에서는 노드에서의 트래픽 형상 분석방법과 광경로 설정/절체 과정에 대해 설명하고, 컴퓨터 시뮬레이션을 통해 제안한 개념의 성능을 분석하였다.

Keywords

References

  1. R. Ramaswami, K. N. Sivarajan, Optical Networks: A Practical Perspective. San Mateo, CA: Morgan Kaufmann., 2002
  2. E. Oki, K. Shiomoto, D. Shimazaki, N. Yamanaka, 'Dynamic multilayer routing schemes in GMPLS-based IP+optical networks,' IEEE Commun. Mag., vol. 43, pp.108–114, Jan. 2005
  3. A. Jaiszczyk, 'Automatically switched optical networks: benefits and requirements,' IEEE Commun. Mag, vol. 43, pp.S10-S15, Feb 2005
  4. R. Ramaswami and K. N. Sivarajan, 'Design of logical toplogies for wavelength-routed optical networks,' IEEE J. Select. Areas Commun., vol. 14, pp. 840-851, June 1996 https://doi.org/10.1109/49.510907
  5. R. Dutta and G. N. Rouskas, 'A survey of virtual topology design algorithms for wavelength routed optical networks,' Opt. Networks Mag., vol. 1, no. 1, pp.73-89, Jam. 2000
  6. H. Zang, J, Jue, and B., Mukherjee, 'A review of routing and wavelength assignment approaches for wavelength-routed optical WDM networks,' Opt. Networks Mag., vol. 1, no. 1, pp. 47-60, Jan. 2000
  7. B. Mukherjee, 'WDM optical communication networks: progress and challenges,' IEEE J. Select. Areas Commun., vol. 18, pp. 1810-1824, Oct. 2000 https://doi.org/10.1109/49.887904
  8. H. Zang, J.P. Jue, L. Sahasrabuddhe, R. Ramamurthy, B. Mukherjee, 'Dynamic lightpath establishment in wavelength routed WDM networks,' IEEE Commun. Mag., vol. 39, pp.100–108, Sept. 2001
  9. J. P. Labourdtte and A. S. Acampora, 'Branchexchange Sequences for Reconfiguration of Lightwave Networks,' IEEE Trans Commun., vol. 42, no. 10, pp. 2822-2832, Oct. 1994 https://doi.org/10.1109/26.328952
  10. K. Bala et al., 'Towards hitless reconfiguration in WDM optical networks for ATM transport,' in Proc. IEEE GLOBECOM, pp. 316-320, 1996
  11. I. Baldine and G. N. Rouskas, 'Dynamic Load Balancing in Broadcast WDM Networks with Tuning Latencies,' in Proc. IEEE INFOCOM, vol. 1, pp. 78-85, 1998
  12. I. Baldine and G.N. Rouskas, 'Traffic adaptive WDM networks: A study of reconfiguration issues,' J. Lightwave Technol., vol. 19, pp. 433-455, Apr. 2001 https://doi.org/10.1109/50.920841
  13. A. Gencata and B. Mukherjee, 'Virtualtopology adaptation for WDM mesh networks under dynamic traffic,' IEEE/ACM Trans. Networking, vol. 11, pp. 236-247, April 2003 https://doi.org/10.1109/TNET.2003.810319