The media access control method used by Ethernet and 802.3 standards. Devices first Carrier Sense (i.e. listen) and only transmit if the channel is clear. If two devices see a clear channel and transmit at the same time a collision will occur. This is resolved by the Collision Detection mechanism of the protocol in which devices continuously read data off the channel and compare with their own contribution; if a difference is detected a collision is assumed and they terminate transmission. A new attempt at transmission is made after waiting a random amount of time.
A method of managing traffic on an Ethernet network whereby a network device transmits data if it detects that a channel is available; if two devices transmit data simultaneously the sending devices detect a collision and retransmits after a random time delay.
A communications protocol frequently used on local area networks in which stations, upon detecting a collision of data caused by multiple simultaneous transmissions, wait a random period of time before retransmitting. Combination of CSMA with sensing to detect collisions during transmission. Standard medium access technique in some LANs, including Ethernet.
Refers to an access technique for LANS where workstations connected to the same channel can detect transmissions on that channel and que their transmission while the channel is in use.
In computer networking, Carrier Sense Multiple Access With Collision Detection (CSMA/CD) is a network control protocol in which
