What is a LAN?

  • If the set of communicating computers are within a span of a few hundred metres, then these computers are considered to be part of a LAN (Local Area Network).
  • E.g.  Networks within a home, office, building etc.
  • Normally managed by a single administrative domain
  • Supports high data rates and minimum delay
  • Can be wired or wireless
  • Typical LAN Protocols : 10/100/1000Mbps Ethernet, Wifi 802.11 a/b/g/n etc.
Given below are sample diagrams of a typical Small Office/Home Office (SOHO) LAN and a typical Home LAN
A small office / home office LAN

A small office / home office LAN

A Home LAN
A Home LAN


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