A switch (Switch) means “switch” and is a network device used for forwarding electrical (optical) signals. It can provide a dedicated electrical signal path for any two network nodes connected to the switch. The most common type of switch is the Ethernet switch. Other common types include telephone voice switches and optical switches, etc. Definition

Exchange is a general term for the technology that automatically transmits information between two communication endpoints according to their requirements, and routes the information to the corresponding route that meets the requirements. Switches can be classified as wide area network switches and local area network switches based on their working positions. Wide area switches are devices that perform information exchange functions in communication systems and are applied at the data link layer. Switches have multiple ports, and each port has bridging functionality, allowing for the connection of a local area network or a high-performance server or workstation. In fact, switches are sometimes called multi-port bridges.
Network switches are equipment that expand the network and provide more connection ports for sub-networks to connect more computers. With the development of the communication industry and the advancement of national economic informatization, the market for network switches has shown a steady upward trend. It has the characteristics of high cost performance, high flexibility, relative simplicity, and ease of implementation. Ethernet technology has become the most important local area network networking technology today, and network switches have become the most popular switches. [1]
“Switch” is the English name for a switch. This product is an upgraded version of the original hub. In appearance, it doesn’t have much difference from the hub. Since both ends of the communication need to transmit information, and the method of transmitting the information to the corresponding router that meets the required standards through equipment or manual operation is this technology – the switch technology. From a broad perspective, in the communication system, the device that realizes the information exchange function is the switch. [2]