(NSFNET) A high speed hierarchical "network of networks" in

the US, funded by the National Science Foundation. At the

highest level, it is a backbone network comprising 16 nodes

connected to a 45Mb/s facility which spans the continental

United States. Attached to that are mid-level networks and

attached to the mid-levels are campus and local networks.

NSFNET also has connections out of the US to Canada, Mexico,

Europe, and the Pacific Rim. The NSFNET is part of the

Internet.