Information AboutNsfnet |
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National Science Foundation Network ('''NSFNet''') was a major part of early 1990s Internet Backbone . HISTORY Following the deployment of the CSNET , a network that linked academic Computer Science departments, in 1981, the NSF aimed to create an open network allowing academic researchers access to Supercomputer s. In at Princeton University , the San Diego Supercomputer Center on the campus of the University Of California At San Diego , the National Center For Supercomputing Applications at the University Of Illinois At Urbana-Champaign , the Cornell Theory Center at Cornell University and the Pittsburgh Supercomputing Center . The NSFNet connected these five centers and allowed access to their supercomputers over the network at no cost. The NSFNet went online in 1986 , using a TCP/IP -based protocol that was compatible with the military's ARPANET , as a backbone to which regional and academic networks would connect. It experienced Exponential growth in its network traffic. The original 56- Kbit/s links were upgraded to 1.5 Mbit/s in 1988 and again to 45 Mbit/s in 1991. PRIVATIZATION In the early 1990s , commercial organizations connecting to the Internet had to sign a usage agreement directly with NSFNet to gain access to large parts of the Public Internet , regardless of what Internet Service Provider they purchased Internet Access from. From 1987 to 1995 the NSFNET was operated on behalf of the NSF by Merit Network, Inc. , a non-profit corporation governed by public Universities. On April 30, 1995, the NSFNET Backbone Service was successfully transitioned to a new architecture, where traffic is exchanged at interconnection points called Network Access Point s. SEE ALSO EXTERNAL LINKS
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