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Local Area High Speed Networks by Dr. Sidnie Feit

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Summary Points

  • The full-duplex version of Gigabit Ethernet is totally compatible with the 10Mbps and 100Mbps versions.

  • For full-duplex operation, CSMA/CD is not used, and a system can send a frame whenever it wants, except for the fact that frames must be separated by an interframe gap and PAUSE requests must be honored.

  • Stations connect to a device called a full-duplex repeater or buffered distributor via full-duplex links. The stations share the gigabit bandwidth.

  • Nonstandard 9018-byte Jumbo frames improve performance by reducing the number of frames that need to be sent, which reduces a station's processing load.

  • The half-duplex version of Gigabit Ethernet requires modifications to the protocol. At the time of writing, there are no half-duplex ...

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