It's true for Ethernet because Ethernet's CSMA/CD media access control
method has strict timing requirements, which result in strict length
restrictions. Half-duplex uses CSMA/CD. Full-duplex does not.
I wouldn't say it's true in general, however.
Priscilla
At 05:32 PM 12/25/00, Li Song wrote:
>"full-duplex can be used over longer distance than
>half-duplex" ??
>what 's your opinion ??
>
>
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