Ethernetväylä

Ethernetväylä, often referred to as an Ethernet bus, is a networking technology that uses a shared communication line or bus to transmit data. In this configuration, all devices connected to the bus share the same transmission medium. When a device wants to send data, it broadcasts the information onto the bus, and all other devices on the bus receive this transmission. However, only the intended recipient processes the data. To manage access to the shared bus and prevent data collisions (when multiple devices transmit simultaneously), Ethernetväylä typically employs a media access control (MAC) method like Carrier Sense Multiple Access with Collision Detection (CSMA/CD). CSMA/CD allows devices to listen to the bus before transmitting and to detect and handle collisions if they occur. Early Ethernet implementations, such as those using coaxial cable, commonly utilized this bus topology. While historically significant, Ethernetväylä has largely been superseded by switched Ethernet networks, which offer dedicated connections and higher performance by eliminating shared bandwidth and the need for collision detection.