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:''This article is about the network device for computers. For the woodworking tool, see'' [[Router (woodworking)]].
:''This article is about the network device for computers. For the woodworking tool, see'' [[Router (woodworking)]].
A '''router''' is a [[computer]] device which aggregates the [[network]] needs of many computers, and distributes [[bandwidth]] from a central [[broadband]] connection. They are classified as layer-three devices on the [[OSI model]].
A '''router''' is a [[computer]] device which aggregates the [[network]] needs of many computers, and distributes [[bandwidth]] from a central [[broadband]] connection. They are classified as layer-three devices on the [[OSI model]].<ref>http://techgenix.com/osi-reference-model-layer3-hardware</ref>
A router works by having a unique address on each port and a map of the network in an internal table. The router reads a packet from an incoming port, looks it up in the table, and sends it out the appropriate port. Routers use IP addresses to communicate, and also to isolate broadcast traffic.
A router works by having a unique address on each port and a map of the network in an internal table. The router reads a packet from an incoming port, looks it up in the table, and sends it out the appropriate port. Routers use IP addresses to communicate, and also to isolate broadcast traffic.
==See also==
==See also==
* [[Communications]]
* [[Communications]]
==References==
{{reflist}}
==External links==
==External links==
* http://Cisco.com
* http://Cisco.com
[[Category:Networking]]
[[Category:Networking]]