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Sometime in early December, the world’s most advanced high capacity Internet backbone–capable of transmitting up to 100 gigabits per second–will have its first major segment go live between Chicago, New York, and Washington, aiding health care and other research while laying the groundwork for the day when, as one researcher put it, “High Definition YouTube” becomes available to the masses.

For now, the new network will only be available through Internet2, a university-led collaboration based in Ann Arbor, MI, that runs a nationwide Internet backbone connecting more than 46,000 research, education, and government institutions. But Internet2 technology tends to be five to seven years ahead of commercial offerings, and previous Internet2 efforts pioneered such things as videoconferencing. High hopes are riding on this latest initiative. In addition to having added capacity, it will be more controlled and reliable–a key attribute for sensitive applications such as telesurgery.

“The infrastructure itself is going to be pretty unique in that we are going to have total control of it,” says Steve Cotter, director of network services for Internet2. “We will be able to control how the network is used, when it is provisioned. This is particularly important to the research community.” The new network could make it far easier for a pathology specialist in New York, for example, to control a microscope as it pans across details of a biopsy sample in Los Angeles while he or she is viewing details of a tumor biopsy. Ultimately, it could make actual remote surgery–in which the New York doctor operates robotic equipment that cuts the tumor out of the Los Angeles patient–a common practice.

“The big problem with health care using the Internet for actual clinical practice is that the quality of service is quite questionable,” says Mike McGill, manager of the health-sciences initiative for Internet2, adding that this problem extends even to the existing high-capacity Internet2 network. “If you were actually doing remote telesurgery or telepathology or tele-anything, there is a chance you can get congestion on the network. The new network allows us to dedicate portions of the network to specific activities, so the quality of service people can expect on the network is clearly going to be better, and will allow them confidence.”

McGill adds that of 120 medical schools in the United States, 112 are members of Internet2. That means that the necessary Internet connections will soon be available in the medical centers and teaching hospitals connected to these medical schools. And thanks to a $60 million annual Federal Communications Commission initiative, Internet2 is working to support connecting smaller and rural hospitals to the network too, so that advanced diagnostics and other services can be provided remotely. The goal is to form a ubiquitous advanced health-care network that will improve general access to top-quality services and research.

The new network will initially have ten 10-gigabit circuits–upgradable to 40 gigabit circuits—each on the entire 20,920 kilometer network. It will be capable of routinely transmitting 100 gigabits of data per second–which could rise to 400 gigabits if the higher-capacity circuits are implemented. But even the 100-gigabit network is 10 times fatter than the current Internet2 network, which was first created in 1998. (By comparison, a typical residential cable modem can transmit about one megabit per second, or 1/100,000th the speed of the new network.)

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