본 논문에서는 IP 라우팅을 위한 IS-IS 라우팅 프로토콜의 설계 및 구현 방법에 관하여 제시하고자 한다. IS-IS는 대표적인 링크 상태 라우팅 프로토콜 중 하나로 확장성 및 운용의 용이성 등으로 인해 최근 백본 망 및 대형 사업자 망에서 적용 범위를 넓히고 있는 라우팅 프로토콜이다. 따라서, 백본망으로 사용되는 MPLS 시스템에서의 IS-IS 라우팅 프로토콜의 구현 기술은 중요한 요소가 된다. 특히, MPLS 시스템에서 품질 보장형 서비스를 제공하기 위해서는 확장 IS-IS 프로토콜에서의 망의 상태 정보 및 가용 자원 정보의 전달이 선행되어야 한다. 따라서, 본 논문에서는 IP 라우팅을 위한 IS-IS 라우팅 프로토콜 및 트래픽 엔지니어링을 위한 확장 IS-IS 라우팅 프로토콜의 설계 및 ATM 기반 MPLS 시스템에서의 구현 기술을 제시하고자 한다.
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