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  • BlackJapan

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    válasz kavik #14571 üzenetére

    OCG-ből idézve:

    “Finding a duplex mismatch can be much more difficult than finding a speed mismatch, because if the duplex settings do not match on the ends of an Ethernet segment, the switch interface will still be in a connected (up/up) state. In this case, the interface works, but it might work poorly, with poor performance, and with symptoms of intermittent problems. The reason is that the device using half-duplex uses carrier sense multiple access collision detect (CSMA/CD) logic, waiting to send when receiving a frame, believing collisions occur when they physically do not—and actually stopping sending a frame because the switch thinks a collision occurred. With enough traffic load, the interface could be in a connect state, but it’s extremely inefficient for passing traffic.
    To identify duplex mismatch problems, check the duplex setting on each end of the link and watch for incrementing collision and late collision counters”

    Tehát ezt a PT csinálja.

    [ Szerkesztve ]

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