NSF PR 96-8 - March 14, 1996
Media contact: |
Beth Gaston |
(703) 306-1070 |
|
Program contact: |
Mark Luker |
(703) 306-1950 |
mluker@nsf.gov |
This material is available primarily for archival purposes. Telephone
numbers or other contact information may be out of date; please see current
contact information at media
contacts.
Traffic Jams on the Internet: New Connections Program
to force Internet Technology
While the Internet grows in popularity, a related
problem is growing: traffic jams. The increased demand
of more people on-line using increasingly sophisticated
tools has caused delays in transmission unacceptable
for some scientific uses.
The National Science Foundation has introduced a new
twist to its connections program: emphasizing innovative
solutions that may have broad implications for all
Internet users. The program will look for meritorious
applications that require high performance networking,
and will then fund development by university and college
campus network service providers. Technology developed
for this program will likely affect future operation
of the Internet.
The technology will introduce the idea of prioritization
to Internet traffic. For example, if planning to use
the U.S. Postal Service to send a package, you have
options: overnight mail, first-class service, or third-class
service. The rate of the package delivery is contingent
on how it is designated. Freeways around major cities
often have either express toll roads or high-occupancy-vehicle
lanes to bypass congested areas. Similarly, NSF's
connections program is expected to spur the development
of switches and routers to help alleviate bottlenecks
of information.
"There is no single solution. We hope this grant program
will stimulate the development of a technological
option for the Internet, to introduce prioritization
and provide a new style of connection that gives a
guaranteed level of service at a national level,"
said Mark Luker, manager of NSF's connections program.
Currently on the Internet, all packets of information
are treated alike. While this worked fine before the
popularization of the Internet, it now interferes
with some uses that require high performance service.
One example is to use high performance connections
of multiple small computers to create a large workstation
cluster distributed across the nation. The Internet
is currently too congested for such a system. Teleconferencing
or videoconferencing also places too great a need
on the current capacity. And, some scientific instrumentation
requires specific fast connections, though not necessarily
high bandwidth. Interruptions or delays caused by
Internet congestion could be fatal to experiments.
One solution might include prioritization of traffic
on the Internet. Another solution might involve diverting
specially coded traffic to high performance, special
use networks, such as NSF's vBNS (very high speed
Backbone Network Service).
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