Software-defined optical network for metro-scale geographically distributed data centers

作     者：Samadi, Payman Wen, Ke Xu, Junjie Bergman, Keren 

作者机构：Columbia Univ Dept Elect Engn New York NY 10027 USA 

出 版 物：《OPTICS EXPRESS》 (Opt. Express)

年 卷 期：2016年第24卷第11期

页      面：2310-2320页

核心收录：

学科分类：070207[理学-光学] 07[理学] 08[工学] 0803[工学-光学工程] 0702[理学-物理学] 

基　　金：NSF ERC for Integrated Access Networks (CIAN) [EEC-0812072] NSF CNS Networking Technology and Systems (NeTS) [CNS-1423105] Directorate For Engineering Div Of Industrial Innovation & Partnersh Funding Source: National Science Foundation 

主　　题：Circuit switching Optical amplifiers Optical networks Reconfigurable optical add drop multiplexers Routing algorithms Wavelength assignment 

摘      要：The emergence of cloud computing and big data has rapidly increased the deployment of small and mid-sized data centers. Enterprises and cloud providers require an agile network among these data centers to empower application reliability and flexible scalability. We present a software-defined inter data center network to enable on-demand scale out of data centers on a metro-scale optical network. The architecture consists of a combined space/wavelength switching platform and a Software-Defined Networking (SDN) control plane equipped with a wavelength and routing assignment module. It enables establishing transparent and bandwidth-selective connections from L2/L3 switches, on-demand. The architecture is evaluated in a testbed consisting of 3 data centers, 5-25 km apart. We successfully demonstrated end-to-end bulk data transfer and Virtual Machine (VM) migrations across data centers with less than 100 ms connection setup time and close to full link capacity utilization. (C) 2016 Optical Society of America