▶ 10.4 Ethernet: A Modern LAN
Most modern LANs use a form of the Ethernet network. When originally developed at Xerox PARC, Ethernet provided a bus network using a coaxial cable (coax). This is the same type of cable used with cable TV connections: an insulated metallic jacket surrounding an insulated core with a single, thick wire. Each host computer connected to the shared coax. Modern Ethernet rarely uses coax, but may still use a bus connection (FIGURE 10.11).
FIGURE 10.11 This Ethernet LAN connects hosts on a bus.
Because the Ethernet uses a bus, the hosts must take turns using it. To send a message, a host first listens to the bus ...
Get Elementary Information Security, 3rd Edition now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.
