Figure 7 summarizes the comparison results of BCO and PSO approaches in case of NSFNet
As the IETF was gaining members and prominence in the late 1980s, it was also becoming increasingly clear that ARPANET, NSFNET
, and other networks were growing beyond their research-oriented roots, gaining a broader user community and attracting increased commercial interest.
During the NSFNET
era, the NSFNET
backbone was the only game in town,
The same is true for the homogeneous NSFNET
topology (Fig 4).
High Speed Backbone Network Services Provider for NSFNET
(22.) The proliferation of networks started with NSFNET
, a sort of clone of the second generation ARPANET used by NSF researchers, opening up connections to small commercial networks.
From a technical standpoint, the work on Project MAC and other time-sharing systems in the 1960s laid the groundwork for the ARPANet in the 1970s, the NSFNet
in the 1980s, and the commercial Internet in the 1990s and beyond.
The Internet evolved out of the National Science Foundation's NSFNET
backbone, which was created in 1986 (and decommissioned in 1997) to provide universities all over the country with access to federally funded supercomputing centers located at five major universities.