What does the repeater do?

Function: The RP repeater works in the physical layer of OSI and is the center of all nodes on the local area network. Its function is to amplify signals, compensate signal attenuation and support long-distance communication. Repeater, which works in the physical layer, only plays the role of extending transmission distance and is transparent to high-level protocols.

in fact, a network connected by repeaters is equivalent to a larger network composed of the same wire. Repeaters can also connect networks of different transmission media (1Base 5 and 1Base 2), which are often used in the interconnection of the same LAN above the data link layer.

Extended information:

Repeater is the simplest and cheapest interconnection equipment used to extend the network distance under the local area network environment, operating in the physical layer of OSI, and the repeater has the function of amplifying and regenerating the signals on the line. Used to extend the length of LAN network segment. Only used to connect the same LAN segment.

working principle of repeater: repeater is a small invention, which is designed to give impetus to network signals so that they can be transmitted further. Due to the influence of transmission line noise, the digital signal or analog signal carrying information can only be transmitted for a limited distance. The function of the repeater is to regenerate and transmit the received signal, thus increasing the transmission distance of the signal.

it is the simplest network interconnection device, connecting two or more network segments of the same network. For example, Ethernet often uses repeaters to extend the cable length of the bus. The maximum length of each segment of standard thin cable Ethernet is 185 meters, and there can be at most 5 segments. Therefore, after adding repeaters, the maximum network cable length can be increased to 925 meters.

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