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Network Working Group M. Kapor
Request for Comments: 1259 Electronic Frontier Foundation
September 1991
Building The Open Road:
The NREN As Test-Bed For The National Public Network
Status of this Memo
This memo provides information for the Internet community. It does
not specify an Internet standard. Distribution of this memo is
unlimited.
Introduction
A debate has begun about the future of America's communications
infrastructure. At stake is the future of the web of information
links organically evolving from computer and telephone systems. By
the end of the next decade, these links will connect nearly all homes
and businesses in the U.S. They will serve as the main channels for
commerce, learning, education, and entertainment in our society. The
new information infrastructure will not be created in a single step:
neither by a massive infusion of public funds, nor with the private
capital of a few tycoons, such as those who built the railroads.
Rather the national, public broadband digital network will emerge
from the "convergence" of the public telephone network, the cable
television distribution system, and other networks such as the
Internet.
The United States Congress is now taking a critical step toward what
I call the National Public Network, with its authorization of the
National Research and Education Network (NREN, pronounced "en-ren").
Not only will the NREN meet the computer and communication needs of
scientists, researchers, and educators, but also, if properly
implemented, it could demonstrate how a broadband network can be used
in the future. As policy makers debate the role of the public
telephone and other existing information networks in the nation's
information infrastructure, the NREN can serve as a working test-bed
for new technologies, applications, and governing policies that will
ultimately shape the larger national network. Congress has indicated
its intention that the NREN
would provide American researchers and educators with the computer
and information resources they need, while demonstrating how
advanced computer, high speed networks, and electronic databases
can improve the national information infrastructure for use by all
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Americans. (1)
As currently envisioned, the NREN
would connect more than one million people at more than one
thousand colleges, universities, laboratories, and hospitals
throughout the country, giving them access to computing power and
information -- resources unavailable anywhere today -- and making
possible the rapid proliferation of a truly nationwide, ubiquitous
network... (2)
The combined demand of these users would develop innovative new
services and further stimulate demand for existing network
applications. Library information services, for example, have
already grown dramatically on the NREN's predecessor, the Internet,
because the
enhanced connectivity permits scholars and researchers to
communicate in new and different ways.... Clearly, to be
successful, effective, and of use to the academic and research
communities, the NREN must be designed to nurture and accommodate
both the current as will as future yet unknown uses of valuable
information resources. (3)
So as the NREN implementation process progresses, it is vital that
the opportunities to stimulate innovative new information
technologies be kept in mind, along with the specific needs of the
mission agencies which will come to depend on the network.
Far from evolving into the whole of the National Public Network
itself, the NREN is best thought of as a prototype for the NPN, which
will emerge over time from the phone system, cable television, and
many computer networks. But the NREN is a growth site which, unlike
privately controlled systems, can be consciously shaped to meet
public needs. For a wide variety of services, some of which might
not be commercially viable at the outset, the NREN can
provide selective access that proves feasibility and leads to the
creation of a commercial infrastructure that can support universal
services.... If we fully focus on ...[current] goals and work our
way through a multitude of technical and operational issues in the
process, then the success of the NREN will fully support its
extension to broader uses in the years to follow. (4)
In order to function as an effective test-bed, one that promotes
broad access to a range of innovative, developing services, the NREN
must be built so that it is easy for developers to offer new kinds of
applications, and is accessible to a diversity of users. For
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example, to encourage the development of creative, advanced library
services, it must be easy for libraries to open their data bases to
users all across the network. And if these library services are to
flourish through the NREN, then the services must be available to
researchers and students all over the country, through a variety of
channels. Though the NREN itself is intended to meet the
supercomputing and networking needs of the government-financed
research community, Congress has wisely recognized that it can also
function as a channel for delivery of a wide range of privately-
developed information services. To
encourage use of the Network by commercial information service
providers, where technically feasible, the Network shall have
accounting mechanisms which allow, where appropriate, users or
groups of users to be charged for their usage of copyrighted
materials over the Network. (5)
Congress can create an environment that stimulates information
entrepreneurship by mandating that the NREN rely on open technical
standards whose specifications are not controlled by any private
parties and which are freely available for all to use. Such non-
proprietary standards will ensure that different parts of the network
built and operated by independent parties, will all work together
properly. By employing widely-used, non-proprietary standards the
NREN will make it easy for new information providers to offer their
wares on the network. The market will snowball: as more services are
offered, more users will be attracted, who will increase overall
demand. The NREN will also be a test-bed for development and
experimentation with new networking standards that facilitate even
broader, more efficient interconnection than now possible on the
Internet. But throughout the stages of the NREN, all concerned
should be sure that these functionalities are fostered.
The NREN design and construction process is complex and will have
significant effects on future communications infrastructure design:
Building the NREN has frequently been described as akin to
building a house, with various layers of the network architecture
compared to parts of the house. In an expanded view of this
analogy, planning the NII [national information infrastructure] is
like designing a large, urban city.
The NREN is a big new subdivision on the edge of the metropolis,
reserved for researchers and educators. It is going to be built
first and is going to look lonely out there in the middle of the
pasture for a while. But the city will grow up around it in time,
and as construction proceeds, the misadventures encountered in the
NREN subdivision will not have to be repeated in others. And
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there will be many house designs, not just those the NREN families
are comfortable with.... The lessons we learn today in building
the NREN will be used tomorrow in building the NII. (6)
The coming implementation and design of the NREN offers us a critical
opportunity to shape a small but important part of the National
Public Network.
VISIONS
At its best, the National Public Network would be the source of
immense social benefits. As a means of increasing social
cohesiveness, while retaining the diversity that is an American
strength, the network could help revitalize this country's business
and culture. As Senator Gore has said, the new national network that
is emerging is one of the "smokestack industries of the information
age." (7) It will increase the amount of individual participation in
common enterprise and politics. It could also galvanize a new set of
relationships -- business and personal -- between Americans and the
rest of the world.
The names and particular visions of the emerging information
infrastructure vary from one observer to another. (8) Senator Gore
calls it the "National Information Superhighway." Prof. Michael
Dertouzos imagines a "National Information Infrastructure [which] ...
would be a common resource of computer-communications services, as
easy to use and as important as the telephone network, the electric
power grid, and the interstate highways." (9) I call it the National
Public Network (NPN), in recognition of the vital role information
technology has come to play in public life and all that it has to
offer, if designed with the public good in mind.
To what uses can we reasonably expect people to use a National Public
Network? We don't know. Indeed, we probably can't know -- the users
of the network will surprise us. That's exactly what happened in the
early days of the personal computer industry, when the first
spreadsheet program, VisiCalc, spurred sales of the Apple II
computer. Apple founders Steve Jobs and Steve Wozniak did not design
the spreadsheet; they did not even conceive of it. They created a
platform which allowed someone else to bring the spreadsheet into
being, and all the parties profited as a result, including the users.
Based on today's systems, however, we can make a few educated guesses
about the National Public Network. We know that, like the telephone,
it will serve both business and recreation needs, as well as offering
crucial community services. Messaging will be popular: time and time
again, from the ARPAnet to Prodigy, people have surprised network
planners with their eagerness to exchange mail. "Mail" will not just
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mean voice and text, but also pictures and video -- no doubt with
many new variations. One might imagine two people poring over a
manuscript from opposite ends of the country, marking it up
simultaneously and seeing each others' markings appear on the screen.
We know from past demand on the Internet and commercial personal
computer networks that the network will be used for electronic
assembly -- virtual town halls, village greens, and coffee houses,
again taking place not just through shared text (as in today's
computer networks), but with multi-media transmissions, including
images, voice, and video. Unlike the telephone, this network will
also be a publications medium, distributing electronic newsletters,
video clips, and interpreted reports. (10)
We can speculate but cannot be sure about novel uses of the network.
An information marketplace will include electronic invoicing,
billing, listing, brokering, advertising, comparison-shopping, and
matchmaking of various kinds. "Video on demand" will not just mean
ordering current movies, as if they were spooling down from the local
videotape store, but opening floodgates to vast new amounts of
independent work, with high quality thanks to plummeting prices of
professional-quality desktop video editors. Customers will grow used
to dialing up two-minute demos of homemade videos before ordering the
full program and storing it on their own blank tape.
There will be other important uses of the network as a simulation
medium for experiences which are impossible to obtain in the mundane
world. If scientists want to explore the surface of a molecule,
they'll do it in simulated form, using wrap-around three-dimensional
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