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Last update: Apr 1, 2000

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Status of U.S. Networks at the Turn of the Century

Les Cottrell

Speaker: Les Cottrell

  This talk will describe the main backbone networks in use in the U.S. by HENP as we move into the new millenium. These include the major U.S. National Research and Education Networks (NRENs): Internet 2 fostered networks vBNS and Abilene, the federal backbones (ESnet, NREN etc.); and the commercial Internet. The organization, audience, deployment and peering of the NRENs will be described, together with some of the testbeds that are using them. I will then briefly cover the importance to HENP of the commercial Internet and mention how their backbones are keeping up with demand. A snapshot of the traffic at a commercial Internet exchange will be used to give some idea of the usage of the commercial Internet. A comparison of the relative performance of the networks measured using the PingER tools will be shown to indicate that, within a U.S. NREN, performance is several times better than on the commercial Internet. I will also use PingER measurements to show how well the links are performing between the U.S. and Europe and N. America and the rest of the world. Finally the meaurements will be used to show how the expected TCP throughput performance has improved by more than an order of magnitude in many cases over the last 5 years.

Presentation:  PowerPoint 

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