NII Builds the World’s First Round-the-Globe Ultra-High-Speed 100 Gbps Academic Communications Network

by upgrading direct international connections of SINET to the United States, Europe and Asia subsequently to upgrading domestic connections towards Society 5.0

NII has expanded the international line of SINET academic information network and began operating a 100 Gbps ultra-high-speed international links in a configuration that circles the globe from Japan to the United States, Europe and back. This is the first time in the world to build an international links that goes around the globe owned by a single NREN. At the same time, NII also upgraded the SINET Asia link between Japan and Singapore to the same 100 Gbps speed. These upgrades will alleviate the pressure on SINET overseas connections which had been experiencing increased transmission data volume, improve stability by making ultra-high-speed connections from two directions, Europe and the United States, and also improve relation with interconnected overseas research networks.

SINET International Connection Topology Before and After Upgrades
Interconnection with overseas research networks

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SINET4 commenced operation (April 1, 2011)

The Science Information Network (SINET) is an information and communication network connecting universities and research institutions throughout Japan via nationwide connection points (nodes). It is designed to promote research and education as well as the circulation of scientific information among universities, research institutions, and similar entities. SINET is also connected to research networks such as Internet2 in the U.S. and GÉANT2 in Europe to facilitate dissemination of research information and collaborations over networks.

SINET4 began operations in April 2011, and it replaces the previous SINET3. SINET4 plays an important role as the core component of the Cyber Science Infrastructure(CSI).