한국통신학회논문지 B : 네트워크 및 융합 서비스, v.28, no.4B, pp.306-315
ISSN
1226-4717
Publisher
한국통신학회 (KICS)
Language
Korean
Type
Journal Article
Abstract
광통신망에서는 언제 발생할 지 모를 통신경로상의 장애에 대비하여 통신망의 생존성을 확보할 수 있는 장애복구가 중요하다. 본 논문에서는 백업경로 자원을 공유하는 메쉬형태의 광통신망에서 장애시 이를 복구하는 방법에 대해 기존 제안된 방식을 분석하고 이에 대해 자원의 활용성과 관리의 효율성을 높일 수 있는 deferred commit 복구 구조를 제안하였다. 그리고 복구신호의 전달에 필요한 메시지 형태 및 포맷, 전달흐름 등을 구체적으로 제시하였다. 또한 deffered commit 구조에서 소요되는 지연시간을 내용적으로 규명하고 시뮬레이션을 통해 여러 복구 구조들간의 특성을 비교하였다.
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