Re: full-duplex and half-duplex

jschmidt40238_at_netscape.net
Date: 05/31/04 

Date: Mon, 31 May 2004 10:04:51 -0400

"Rev. Don Kool" <oldno7@comcast.net> wrote:

>Huge wrote:
>> Yuan Zhong <yzhong@henri.math.fsu.edu> writes:
>>
>>>Hi, Can someone please help me understand full-duplex and half-duplex.
>>>
>>>I understand that you may use ndd to set a ethernet interfac to 10/100M
>>>full/half duplex. What I don't understand is how you can achieve
>>>full-duplex.
>>>
>>>Since ethernet is based on CSMA/CD, if the ethernet card send and receive
>>>a packet at the same time, doesn't it collide?
>>
>>
>> Not on a twisted pair network, no. Send and receive are on different pairs.
>>
>>
>>>If full-duplex is achieved, can someone explain the physics behind the
>>>scene, like what voltage is used for sending out packets and what voltage
>>>is used for receiving packets.
>>>
>>>Thank you and you all have a good memorial weekend.
>>
>>
>> Whatever that might be. Not all the world is the USA, you know.
>
> Only the part that matters.
>
> Hope this helps,
> Don

Welcome back, Don. Glad to see you posting again.