CSMA/CD is used to improve CSMA performance by terminating transmission as soon as a collision is detected, thus shortening the time required before a retry can be attempted.

What is CSMA CD example?

CSMA/CD (Carrier Sense Multiple Access with Collision Detection) helps hosts to decide when to send packets on a shared network segment and how to detect collisions if they occur. For example, in a hub network, two devices can send packets at the same time. This can cause a collision.

What uses CSMA CD?

To deal with collisions, carrier sense multiple access with collision detection (CSMA/CD) is used in Ethernet as the MAC protocol. For collision detection, every node monitors the bus while sending data. If the data on the bus is different to the data a node is currently sending, a collision is detected.