본 논문은 IETF에서 제안한 차등화서비스모델(Differentiated Service Model)을 지원하는 라우터를 리눅스상에 구현하였다. 구현한 라우터는 기존의 리눅스에서 지원하는 에지 라우터의 단점을 개선하기 위하여 구현한 ingress marker를 사용하였다. 구현된 ingress marker는 AF 클래스의 트래픽을 미터링하고 마킹하기 위해 사용되는 trTCM을 포함하고 있으며, 이 ingress marker를 사용한 에지 라우터는 병목이 발생한 경우에도 각 클래스간 독립적으로 서비스를 보장해 줄 수 있다. 각 클래스간 성능보장은 AF PHB를 통해 기존 라우터와 비교 실험하여 검증하였다.
KSP Keywords
Differentiated services, Service Model
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