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n-1-1-030.50.1
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1995-07-21
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030.50.1 Gigabit Networks
by Robert E. Kahn* <kahn@nri.reston.va.us>
A small number of research sites will soon be gaining limited access to
experimental networks which support end-end user communication rates on the
order of a gigabit per second (i.e. a billion bits per second). While many
technical problems must be solved before wide-area common-user networks are
available with this capability, it cannot be assumed that they will simply
happen because all the technical problems are solved. High speed "network
backbones" have been cost effective for multiplexing large numbers of lower
speed users. Backbone speeds on the order of Terabits per second and higher
will be necessary to support a large user community with gigabit access speed
requirements in a wide-area common user network. Many factors, including
sustained throughput requirements, acceptable levels of delay, the need for
real-time delivery guarantees and overall size of the market will surely be
taken into account in determining the price of gigabit network services.