"By the time astronauts make humanity's next giant leap, they may well be getting their e-mail via a dot-space address. "
Internet Routing in Space, also known as IRIS, is a project being conducted by the U.S. Department of Defense to place an IP (Internet protocol) router on a geostationary satellite. The project is intended for military communications but may eventually be used by the private sector as well. If widely implemented, this technology has the potential to dramatically increase flexibility and traffic handling capability compared with existing satellite Internet systems.
In the IRIS system, the satellite will receive packets directly from the source and transmit them directly to the destination, eliminating all intermediate surface nodes and requiring only one round trip to the satellite. This will reduce the latency, simplify the system, improve reliability and lower the overall maintenance cost.
The IRIS project is scheduled to be completed and the satellite launched in 2009. Cisco Systems is designing the software for the on-board router. The hardware is being built by Intelsat, the largest provider of fixed satellite services worldwide. Overall coordination will be done by the U.S. Defense Information Systems Agency.
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