What determines if one communicates using half- or full-duplex?
Half-duplex is used to describe communication where only... one side can talk at a time. Once one side has finished transmitting its data, the other side can respond. Only one node can talk at a time. If both try to talk at the same time, a collision will occur on the network.
As you can understand, this method of communication is not very efficient and requires more time to send/receive larger amounts of data.
On the other hand, full-duplex is used to describe communication where both sides are able to send and receive data at the same time. In these cases, there is no danger of a collision and therefore the transfer of data is completed much faster.
Today, all networks make use of switches (rather than hubs) and UTP Ethernet cabling, which allow full-duplex communication between all connected hosts.
For more information:
View this lesson on half/full duplex communications, hubs and switches.
See SearchNetworking.com's crash course on understanding duplex conflicts.
Dig Deeper on Network Administration
Related Q&A from Chris Partsenidis
Expert Chris Partsenidis offers guidelines for a smooth and successful PSTN to VoIP migration.continue reading
What SIP trunking basics should you know before you deploy? SIP trunking guru Chris Partsenidis explains what you need to know about SIP trunking ...continue reading
There are many new network security devices on the market today. Expert Chris Partsenidis opines on whether these can replace firewalls.continue reading
Have a question for an expert?
Please add a title for your question
Get answers from a TechTarget expert on whatever's puzzling you.