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

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

A Framework for OAM in OBS Networks

OBS 네트워크의 OAM 기본 체제

  • 신종덕 (숭실대학교 정보통신전자공학부)
  • Published : 2004.01.01
Download PDF
⟨ Previous Next ⟩

Abstract

Operation and maintenance (OAM) in optical burst switching (OBS) networks has not yet been addressed even though OBS has been gaining research interest in recent years. In this paper, we defined five OBS functions such as Burst Termination (BT), Burst Transmission (BTX), Burst Switching (BSW), Routing and Switching Control (RSC), and Protection and Restoration (PAR). A functional model for OBS networks and an OAM architecture are designed to meet the operational requirements. We present the first framework to realize OAM in OBS networks, including OAM activities, OAM-capable OBS nodes such as ingress edge, core, and egress edge nodes, OAM information and communication models and protocols. A number of examples of possible network failures are pointed out and the corresponding reactions to these using the proposed OAM architecture are presented.

OBS (Optical Burst Switching) 네트워크에 관한 연구가 최근 활발히 진행되고 있으나 OBS 네트워크 운용에 필수적인 OAM (Operation md Maintenance)에 대한 연구는 아직 다루어지고 있지 않다. 본 논문에서는 다섯가지 OBS 기능들, 즉 BT (Burst Termination), BTX (Burst Transmission), BSW (Burst Switching), RSC(Routing and Switching Control), 그리고 PAR (Protection and Restoration)을 정의하였고, 이 기능적 모델에 근거하여 네트워크 운용 요구 조건들을 만족시키기 위한 OAM 아키텍처를 설계하였다. 또한, OAM 수행에 필요한 OAM 동작들의 정의와 OAM이 가능한 ingress 에지, 코어, egress 에지 노드들의 구조, 그리고 OAM 정보 및 통신 모델과 프로토콜 등과 같은 OAM 구현을 위한 기본 체제를 제안하였다. 그리고, 제안된 OAM 아키텍처를 이용하여 OBS 네트워크에서 발생 가능한 여러 가지 장애들에 대한 OAM을 정리하였다.

Keywords

References

  1. J.-D. Shin, S. Charcranoon, H. Cankaya, and T. El-Bawab, 'Procedures and Functions for Operation and Maintenance in Optical Burst-Switching Networks,' Proc. 2002 1EEE Workshop on IP Operations and Management (IPOM 2002), pp. 149-153, pp. 29-31, October 2002 Dallas, Texas, USA
  2. J.-D. Shin, S. Charcranoon, H. Cankaya, and T. El-Bawab, 'Operation and Maintenance Issues in Optical-Burst Switched Networks,' Proc. of SPIE, vol. 4872, pp. 230-238, ITCom 2002, July 29-31, 2002, Boston, Massachusetts, USA https://doi.org/10.1117/12.475122
  3. Y.-H. Choi, K.-H. Lee, J.-Y. Lee, and S.-B. Lee, 'OAM MIB: an end-to-end performance management solution for ATM,' IEEE J. Setect. Areas Commun., vol. 18, pp. 767-778, 2000 https://doi.org/10.1109/49.842992
  4. R. Ramaswami and K. N. Sivarajan, Optical networks: a practical perspective, 2nd ed., Morgan Kaufmann, CA, 2002
  5. Y. Tada, Y. Kobayashi, Y. Yamabayashi, S. Matsuoka, and K. Hagimoto, 'OA&M framework for multiwavelength photonic transport networks,' IEEE J. Select. Areas Commun., vol. 14, pp. 914-922, 1996 https://doi.org/10.1109/49.510915
  6. Neil Harrison, et al., 'Requirement for OAM in MPLS networks,' Internet draft: draft-harrison-mpls-oam-req-O1.txt, Dec. 2001
  7. J. S. Turner, 'Terabit Burst Switching,' J. High Speed Networks, vol. 8, pp. 3-16, 1999
  8. C. Qiao and M. Yoo, 'Optical burst switching (OBS) a new paradigm for an optical internet,' J. High Speed Networks, vol. 8, pp. 69-84, 1999
  9. T. El-Bawab, A. Agrawal, F. Poppe, L. Sovman, D. Papadimitrio, and B. Rousseau, 'The Evolution to Optical-Switching Based Core Networks,' Optical Network Magazine, vol. 4, no. 2, March/April 2003
  10. Functional characteristics of interoffice and long-haul line systems using optical amplifiers, including optical multiplexing, ITU-T Recommendation G.681
  11. Y. Xiong, M. Vandenhoute, and H. Cankaya, 'Control architecture in OBS WDM networks', IEEE J. SeIect. Areas Commun., vol. 18, no. 10, pp. 1838-1851, Oct. 2000 https://doi.org/10.1109/49.887906