Journal of the Institute of Electronics Engineers of Korea TC (대한전자공학회논문지TC)

The Institute of Electronics and Information Engineers (대한전자공학회)
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Fault/Attack Management Framework for Network Survivability in Next Generation Optical Internet Backbone

차세대 광 인터넷 백본망에서 망생존성을 위한 Fault/Attack Management 프레임워크

  • 김성운 (부경대학교 전자컴퓨터정보통신공학부) ;
  • 이준원 (안동대학교 전자정보산업학부)
  • Published : 2003.10.01
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Abstract

As optical network technology advances and high bandwidth Internet is demanded for the exponential growth of internet traffic volumes, the Dense-Wavelength Division Multiplexing (DWDM) networks have been widely accepted as a promising approach to the Next Generation Optical Internet (NGOI) backbone networks for nation wide or global coverage. Important issues in the NGOI based on DWDM networks are the Routing and Wavelength Assignment(RWA) problem and survivability. Especially, fault/attack detection, localization and recovery schemes in All Optical Transport Network(AOTN) is one of the most important issues because a short service disruption in DWDM networks carrying extremely high data rates causes loss of vast traffic volumes. In this paper, we suggest a fault/attack management model for NGOI through analyzing fault/attack vulnerability of various optical backbone network devices and propose fault/attack recovery procedure considering Extended-LMP(Link Management Protocol) and RSVP-TE+(Resource Reservation Protocol-Traffic Engineering) as control protocols in IP/GMPLS over DWDM.

인터넷 트래픽의 폭발적인 증가로 인한 높은 대역폭의 요구와 광 네트워크 기술이 발전되면서 DWDM 네트워크가 국가적 혹은 범세계적인 차세대 광 인터넷(NGOI) 백본망의 대안으로 인식되고 있다. 이러한 DWDM 네트워크 기반의 NGOI에서는 RWA(Routing and Wavelength Assignment) 문제와 생존성이 중요한 이슈가 되고 있다. 특히 높은 데이터 전송율을 가지는 DWDM 네트워크에서 일어나는 짧은 서비스 파괴는 막대한 트래픽 손실을 야기하므로, AOTN에서의 fault/attack 검출, 지역화, 그리고 회복시킴은 가장 중요한 이슈 중 하나가 된다. 본 논문에서는 다양한 광 백본망 소자들의 fault/attack 취약성 분석을 통한 fault/attack 관리 모델을 제안하고, IP/GMPLS over DWDM 내의 제어프로토콜인 Extended-LMP (Link Management Protocol)와 RSVP-TE+(Resource Reservation Protocol-Traffic Engineering)를 이용하여 fault/attack 회복 절차를 제시한다.

Keywords

References

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