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Glossary of Data Communications Terms
Courtesy Enterprise-Wide Computing, Inc.
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Term:
CSMA/CD
Definition:
Carrier Sense Multiple Access with Collision Detection. A
network access method for managing collisions of data
packets. Acronym for Carrier Sense Multiple Access with
Collision Detection. A network protocol for handling
situations in which two or more nodes (stations) transmit
at the same time, thus causing a collision. With CSMA/CD,
each node on the network monitors the line and transmits
when it senses that the line is not busy. If a collision
occurs because another node is using the same opportunity
to transmit, both nodes stop transmitting. To avoid another
collision, both then wait for differing random amounts of
time before attempting to transmit again. Compare token
passing.
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