SDN 기술은 2011년부터 2013년까지는 Hype 사이클상 발생기 및 버블기를 지나는 동안 주로 기술의 필요성에 대한 논의가 많이 이루어져 왔고 기술개발도 적합성 검증 차원의 연구개발 및 Proof of Concept 정도의 서비스 시도가 단편적으로 제공되어 왔었다. 2014년을 접어들면서 각성기의 초기 단계로 관심도가 감소하고 얼리어탑터를 중심으로 1단계 SDN 기술, 상품 및 서비스가 유통되기 시작하고 있다. 본고에서는 이러한 진화과정을 거치고 있는 SDN 기술의 최근 기술동향에 대해 주요 3 계층인 인프라, 컨트롤러, 응용계층별로 학계/연구소, 산업체, 서비스 및 통신사업자, 표준화 단체에서 추진 중인 기술개발, 표준화 현황 및 적용사례에 대해서 소개하고 향후 SDN이 나아갈 발전방향에 대한 전망을 소개한다.
KSP Keywords
proof-of-concept
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