Campus local area networks (LANs) come in all shapes and sizes, but let’s keep it simple and say these are enterprise networks with hundreds or thousands of users and LANs in one or more buildings.

We’re going to begin with computer networks, and how they grew from small groups of connected computers on LAN networks to eventually larger worldwide networks like the ARPANET and even the Internet ...

Well, a network is a group of computer systems connected to share resources and communicate. It is also a collection of devices and computers linked together via transmission media and communication ...