Bitrate vs. Baud Rate: What is the baud rate of standard 10Mbps 802.3 Ethernet? Why?

Baud rate: the number of signal changes per second. As the standard 10Mbps 802.3 LAN adopts Manchester encoding, each code element is represented by two level signals with different phases, in order to complete the transmission of 10Mbps, the signal changes 20M times per second, so the baud rate is 20Mbps.

100Mbps and even 1000Mbps cards, they are based on the Ethernet communication, and most follow the csma/cd rule, 100Mbps and 1000Mbps cards follow the csma/cd rule, 100Mbps, 1000Mbps, 1000Mbps, 100Mbps and 1000Mbps, and so on. cd rule, 100m, 1000m is just to say that their theoretical transmission capacity, the actual utilization rate are only 50% - 60% or even lower, the highest is only 70% - 80%, the hard disk and the bus interface of the card is one of the bottlenecks.

Expanded Profile:

The baud rate, which can be interpreted as the number of codewords of data a device sends (or receives) in one second, is a measure of the rate of symbol transmission and indicates the number of symbols transmitted per unit of time (the rate of symbols transmitted).

Multiple bits of information can be loaded onto a symbol through different modulation methods. In computer network communications, the baud rate refers to the rate at which a microcontroller or computer communicates over a serial port, which refers to the change in signal per unit of time after the signal has been modulated, i.e., the number of times that the carrier parameter changes per unit of time simulates the rate of a line signal, as measured by the number of oscillations per second of the waveform.

Baidu Encyclopedia - Baud Rate