How many repeaters can Ethernet use at most?
RP (Repeater) is a device that works on the physical layer of OSI and connects network lines. Repeaters are commonly used for bidirectional forwarding of physical signals between two network nodes, and connect two or more network segments to amplify and amplify signals, compensate for signal attenuation, and support long-distance communications. The repeater mainly completes the physical layer function, is responsible for transmitting the information by the bit in the physical layer of the two nodes, completes the signal duplication, the adjustment and the enlargement function, thus lengthens the network length. The repeater transmits the data to be delivered optionally.
As a result of loss, the signal power transmitted on the line will be gradually attenuated, attenuation to a certain extent will cause signal distortion, and this will lead to a reception error. Repeaters are designed to solve this problem. It completes the connection of the physical circuit, amplifies the attenuated signal and remains the same as the original data. In general, both ends of the repeater are connected to the same media, but some repeaters can also do the switching of different media. Some brands of repeaters can connect cable segments of different physical media, such as thin coax cables and fiber optic cables
Repeaters can connect two LAN cables, re - timing and regenerating digital signals on the cables, and then send them out, which are typical functions of the first layer of the ISO model, the physical layer. The effect of relay is to increase the coverage area, such as LAN, Ethernet standard specifies the maximum length of a single signal transmission cable is 500 meters, but using the repeater cable to connect 4, Ethernet signal transmission cable up to 2000 meters.. The repeater sends only data from any cable segment to another cable, regardless of whether there is any error data in the data or data that is not suitable for the segment
Due to the effect of transmission line noise, carrying digital signal or analog signal can transmit information in a limited distance, repeater function is regenerated and sending the received signal, thereby increasing the signal transmission distance. It is the simplest network interconnection device that connects two or more network segments of the same network. If the length of the cable Ethernet Repeater often use bus standard, thinnet each maximum length of 185 meters, up to 5, thus increasing the repeater, the maximum length of the cable network can be increased to 925 meters. In general, the network at both ends of the relay is a network segment rather than a subnet.
