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

한국통신학회 (The Korean Institute of Commucations and Information Sciences)
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IP 네트워크 상의 다양한 서비스 복구 알고리즘

Various Algorithms of Service Recovery in IP Network

  • 한정수 (신구대학 인터넷정보과)
  • 발행 : 2004.10.01
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초록

네트워크 상에 장애가 발생 시에는 서비스들의 Qos 요구사항을 만족시킬 수 있는 또 다른 백업 경로를 사용하여 서비스해야 한다. 따라서 본 논문에서는 IP 네트워크 상에 발생된 단일 회선 장애를 위해 simple PFC(5-PFC) 기법과 다중 회선 장애를 위한 iterative PFC(i-PFC) 그리고 라우터와 같은 노드 장애를 복구하기 위한 fault_node Avoidance PFC(a-PFC) 기법들을 제안하고 이를 기반으로 Direct_destination Rerouting(DR) 기법을 최소 재라우팅 비용 문제를 통해 성능 비교 분석하기로 한다.

In case of failure in the IP network services should be provided via a backup path which fully meets QoS requirements. In this regard, we in this paper suggest simple-PFC(5-PFC) to restore single link failure, iterative-PFC(i-PFC) for multiple link failures, and fault_node Avoidance-PFC(a-PFC) for failures of nodes such as routers. Taking the minimum cost rerouting problem into account, we compare and analyze performance of those three mechanisms carrying out Direct_destination Rerouting(DR).

키워드

참고문헌

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