"Building the Internet backbone"
Take a virtual tour of a busy Network Access Point
by George lawton
SunWorld Online.
http://www.sun.com/sunworldonline/swol-09-1996/swol-09-nap.html
Abstract
The Internet, of course, consists of many networks strung together.
The Internet's skeleton is made up of high-capacity trunk lines
maintained by telephone companies at sites called "NAPs." This
article outlines the role of NAPs, and profiles Pacific Bell's NAP in
particular. (2,700 words)