데이터센터 인터커넥트(Data Center Interconnect: DCI) 기술은 새롭게 등장하는 서비스들을 수용하기 위한 목적으로 주로 전송 대역폭 확장에 초점을 맞추어 발전해 왔다. 그러나 최근의 데이터센터의 발전 방향이 클라우드 기반의 개방형 구조로 변화함에 따라서 데이터센터 인터커넥트 기술 또한 변화가 필요하게 되었다. 기장 큰 변화는 하이퍼스케일(Hyperscale) 데이터센터의 등장으로 데이터센터들 사이에 또는 데이터센터와 인터넷 익스체인지 포인트(Internet Exchange Points: IXP) 간에 주고받는 트래픽량이 기하급수적으로 증가하게 되었다는 것이다. 또한, 가상화 기술을 이용하여 지리적으로 멀리 떨어져 있는 여러 개의 데이터센터들을 마치 한곳에 모여 있는 것처럼 연결해 주어야할 필요성이 생겼다. 본 고에서는 데이터센터가 클라우드 기반으로 발전해감에 따라서 새롭게 등장하고 있는 하이퍼스케일 데이터센터의 요구사항들과 이러한 요구사항들을 제공하기 위한 데이터센터 인터커넥트 기술 및 네트워크 구조에 대해서 살펴보고 이를 통해서 가까운 미래의 데이터센터 발전 방향을 유추해 본다.
KSP Keywords
Data center interconnect, Internet exchange points
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