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For questions about Local Area Networks (LANs).

There are several definitions for a Local Area Network (LAN). The specific definition often depends on context, but LAN usually refers to a relatively small network within a limited area. A LAN is usually controlled by a single person or organization.

The term LAN may have various meanings, such as:

  • An OSI layer-2 broadcast domain.
  • A network in a single office.
  • A network in a single building.
  • A network in a small group of adjacent buildings.
  • A network on a single cable plant.
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