Chapter02 - Chapter 2: LAN Standards, Physical...

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Chapter 2: LAN Standards, Physical Connectivity, and Media Access
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LAN Standards Standards are required so that different manufacturers can create equipment that will interoperate without special configuration. Standards groups include: ISO . International Organization for Standardization establishes standards for networking operation. ANSI . American National Standards Institute is the US representative to ISO. EIA/TIA . Electronics Industries Alliance/Telecommunications Industry Association is an industry based standards group. IEEE . Institute of Electrical and Electronics Engineers is an international professional organization that sets communications standards. IEEE Project 802 sets standards for cabling and data transmission on local area networks.
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Physical Connectivity Network Interface Card (NIC) . Also known as Network Card or Ethernet Adapter. Transmits and receives signals to the LAN. Computers can not communicate on LAN without this device. Each Network Card has a Media Access Control (MAC) address . This is also known as the physical address or Ethernet address . MAC address is a unique 12 digit hexadecimal number that is hard coded into each network interface. The first half of a MAC address is the manufacturer’s ID. The second half a serial number. -F3-1C-D4 Serial number 00-04-AC Manufacturer ID
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Cable and Wireless Physical cabling is also known as bounded media . Transmissions are bound to the physical media. To communicate, hosts must be physically connected to that media. Physical cabling is usually located in a building’s
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This note was uploaded on 09/19/2010 for the course LAN 237898 taught by Professor Johns during the Fall '10 term at Allen County Comm College.

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Chapter02 - Chapter 2: LAN Standards, Physical...

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