Basic HTML version of Foils prepared Dec. 6 98

Foil 3 LAN Basics

From Introduction to Local Area Networks LANs Lectures at Xi'an Jaotong University -- Sept 1998. by Roman Markowski
1 High-speed, fault-tolerant data network that covers a relatively small geographic area
2 LAN protocols function at the 2 lowest layers of OSI RM (Physical and Data Link Layers)
3 Typical access methods: CSMA/CD (carrier sense multiple access collision detection) and Token Passing
4 Transmission methods: unicast, multicast and broadcast; in these methods a single packet is sent to one or more nodes
5 LAN topologies: bus, star, ring
6 Devices: repeaters, hubs, bridges, switches, routers
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