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The GEANT Testbeds Service is a production capability offered by GEANT. As a production service, the testbed facilities are made available on 24x7 basis. The GTS facilities are continuously monitored by the GEANT Network Operations Center and outages of infrastructure generate immediate alerts to the Level 1 support staff. Level 2 support is available during normal business hours to address unusual or more complex service related problems requiring more expertise. Level 2 support is available outside of normal business hours by special prior arrangement.GTS version 1.0 is currently deployed in four GEANT core sites (Copenhagen, Bratislava, Ljubljana, and Amsterdam) with three more to sites available in 2015-Q1 (Hamburg, Paris, and Milan). These facilities make available approximately 50-100 Virtual Machines, and approximately 20 to 40 virtual Openflow switching fabrics. These components can be linked via 1Gbps virtual circuits provisioned over the GTS core transport infrastructure with approximately 140 Gbps of total backbone capacity.
The virtual network environments offered by GTS provide a revolutionary new capability for both network researchers as well as for developers of advanced networked applications. GTS networks can offer powerful self contained networks for simulations and experimentation, or they can be employed as "software defined exchange" fabrics – intelligent service-infused network domains bonding together multiple otherwise isolated research islands into a contiguous user defined service region.
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