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Half/Full-Duplex

Posted on 2000-03-27
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Last Modified: 2010-04-11
Hello,

Can someone explain to me the difference between Half and Full Duplex and when to use which.  Or if someone knows of a good whitepaper on it?

Thanks,

Joe
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Question by:jvieira
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dserna earned 150 total points
ID: 2661933
The differences between full-duplex and half-duplex are the following:

In full-duplex the system uses separate signal paths for transmitting a receiving data. This gives the system a chance to send and receive data at the same time.

In half-duplex the sytem uses the same signal path for transmitting and receiving data. So the system can only send or receive, not both at the same time.

Obviously if your network card and switch support full-duplex, it's better to use full-duplex in cases where data is being received as frequently as being sent. half-duplex is useful when you just either send data most of the time, or just receive data most of the time. In my opinion, it's better to just use full-duplex. It's not recommended that you set your network card in your machine to full-duplex and then configure the port on your switch for half-duplex, you will see some serious problems. As for whitepapers on this subject, I am sure that there are many out there just do a search on "halfduplex and full duplex" and you will get a dozen or so useful links.

Hope that helps.
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by:jvieira
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thanks
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