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Local Area High Speed Networks by Dr. Sidnie Feit

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Summary Points

  • A collision domain obeys the 5-4-3 rule: Every path contains at most five segments, four repeaters, and three populated segments.

For coaxial cable LANs

  • The original baseband Ethernet LAN defined in the 1980s was built from sections of thick, heavy 50-ohm coaxial cable.

  • Only one signal can be on a cable at any given time.

  • Stations attach to the medium via attachment unit interface (AUI) cables and transceivers.

  • Transceivers send and receive, send jams, control jabber, and detect collisions.

  • SQE signals are used to report the completion of a frame transmission, a collision, or improper pulses on the cable.

  • Thin (10BASE2) coax is cheaper and easier to work with than thick coax.

  • A thin coax segment has a daisy chain structure.

  • Systems connect ...

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