The basic concept and system structure of the local area network: the local area network LAN connects various computers, external devices and database systems through twisted pair, coaxial cable and other connection media in a small geographic area to form resources and information sharing Computer interconnection network. The main features are:
(1) Owned by a unit, and the geographic range and number of stations are limited
(2) All stations share a higher total bandwidth
(3) Lower delay and lower bit error rate
(4) ) Each station has an equal relationship instead of a master-slave relationship.
(5) Broadcast and multicast can be carried out
. The characteristics of the local area network are mainly determined by three elements: topology, transmission medium, and medium access control. There are four main types of common LAN topologies: star structure, ring structure, bus structure, composite structure of star and bus type. The
local area network can use multiple transmission media such as twisted pair, copper cable and optical fiber. Among them, twisted pair is the mainstream transmission medium
. The media access control of the local area network mainly includes: CSMA/CD, token bus and token ring.
31 Basic Concepts of Local Area Network
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Origin blog.csdn.net/weixin_41883890/article/details/112969981
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