Large Scale Optical Switching in Google Data Centers
ABSTRACT
In this talk, we present, to the best of our knowledge, the first large-scale production deployment of optical circuit switches for datacenter networking. Over the last decade, we have evolved our datacenter network fabric to a direct-connect topology between the machine aggregation blocks. Critical architectural changes for this include: a datacenter interconnection layer employing micro-electro-mechanical systems (MEMS) based optical circuit switches (OCSes) to enable dynamic topology reconfiguration, centralized software-defined networking (SDN) control for traffic engineering, and automated network operations for incremental capacity delivery and topology engineering.
BIOGRAPHY
Kevin Yasumura is a Principal Engineer/Director in Google’s Platforms Optics Team. At Google he is the Technical Lead for MEMS and optical switching development. He has over 25 years of experience developing MEMS-based products and systems. Before joining Google, he was a founding member and Manager of Micro-machining Development at Iolon Corporation where they developed MEMS tunable lasers, tunable filters, and optical switches. He was also Senior Director of Product Development at Formfactor where he led the development of MEMS-based integrated circuit test solutions. Kevin holds a bachelor’s degree in physics from U.C. Berkeley and an M.S. and Ph.D. in applied physics from Stanford University.