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

The Korean Institute of Commucations and Information Sciences (한국통신학회)
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Design and Implementation of User-Oriented Virtual Dedicate Network System Based on Software-Defined Wide Area Network

SD-WAN 기반의 사용자 중심 가상 전용 네트워크 시스템 설계 및 구현

  • Received : 2016.08.25
  • Accepted : 2016.09.09
  • Published : 2016.09.30
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Abstract

KREONET is a principal national R&E network running by KISTI in Korea. It uniquely provides production research network services for around 200 non-profit research and educational organizations, based on hybrid (IP and non-IP) network infrastructure. However, KREONET is limited to meet various needs of new network services for advanced Science & Technology (S&T) users because its infrastructure is inherently derived form classical hardware-based, fixed and closed environments. So, KREONET-S is designed to provide advanced S&T services to catch up with time-to-research and time-to-collaboration. In this paper, we present a system architecture of KREONET-S based on network infrastructure that consists of data and control planes separately. Furthermore, we propose and describe VDN service which is capable of building a virtual dedicate & bandwidth-guaranteed network for S&T group dynamically. we implement VDN application on KREONET-S and then perform performance analysis for proving that KREONET-S system and VDN application can be a good solutions to cope with new network paradigms for various advanced S&T applications and users.

KREONET은 한국과학기술정보연구원(KISTI)이 관리 운영하는 국가 R&D 연구망이다. 이는 고성능 네트워크 인프라를 기반으로 산 학 연 등 약 200여 기관을 대상으로 첨단 응용 네트워크 서비스를 지원하고 있다. 하지만 KREONET은 하드웨어 기반의 폐쇄적인 환경에 의하여 제약을 받고 있어 최근 네트워크 환경의 변화에 따른 새로운 네트워크 서비스에 대한 첨단 응용 사용자들의 다양한 요구사항을 반영하는데 한계점을 지닌다. 이에 따라, KISTI는 첨단연구 및 협업의 적시성 환경 및 프로그래머블 네트워크 인프라를 구축하고 이에 기반한 새로운 첨단응용 서비스를 지원하기 위하여 KREONET-S 프로젝트를 출범하였다. 본 논문에서는 KREONET-S 시스템 구조 및 이의 데이터/제어 평면의 네트워크 인프라 구축 현황을 제시하고, 이에 기반하여 첨단 응용 연구자들이 필요로 하는 가상 전용 네트워크를 동적 구축하는 VDN (Virtual Dedicate Network) 서비스에 관하여 설명한다. 또한 KREONET-S 환경에 VDN 애플리케이션을 구현하고 이의 성능 분석을 수행함으로써 KREONET-S 시스템이 새로운 네트워크 패러다임의 변화에 대응하는 훌륭한 방안임을 검증한다.

Keywords

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