When using full duplex, both stations may transmit and receive simultaneously, so no
arbitration is needed. This is why collisions can't happen when using full duplex:
the transmission and reception circuits are completely separate, so collisions cannot
occur.
<< Sorry to ask such a simple question--but the CCNA book
is still unclear as to what's going on.
Half-duplex ethernet uses CSMA/CD for arbitration on
the link. Does full duplex use it as well for
arbitration? The book makes it sound like if you are
running full-duplex that the CSMA/CD is not necessary.
It mentions half-duplex looping a duplicate frame onto
the recieve wire from the transmit wire.
Thanks.
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