What Is a Switch Network Diagram?

The computers in the network are connected to the shared network through a hub. If the hub is replaced with a switch, a switched network is formed. It has the characteristics of simple installation, low price, and extensive software and hardware support.

Switched network

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The computers in the network are connected to the shared network through a hub. If the hub is replaced with a switch, a switched network is formed. It has the characteristics of simple installation, low price, and extensive software and hardware support.

There are two types of switched Ethernet technologies: static and dynamic switching technologies, including dynamic port switching, dynamic segment switching, static port switching, and static board switching.

The switch replaced the hub to solve the collision problem because the switch can split the collision domain. The switch solves the problem that the hub and the host connected to it cannot communicate in full duplex. The switch can establish an independent data channel for any two ports that exchange data to exchange data, which greatly improves the efficiency of data exchange.

The working mode of a switched network is usually "full duplex", that is, the terminal device can send and receive data at the same time, and the data flow is bidirectional. For a 100mbps port, in the full-duplex working mode, the rate of receiving and sending data is 100mbps, and the total bandwidth can reach 200mbps; for a 1000mbps port, in the full-duplex working mode, The rate is 1000mbps, and the total bandwidth can reach 2000mbps. Correspondingly, a hub is like a small one-lane bridge, which not only allows vehicles from one direction at a time, but also only one vehicle at a time. Statistics on network communication over a long period of time will reveal that the bandwidth of the hub is actually shared by all computers. Therefore, the network constructed by the hub is called "shared network". Shared networks are often called "half duplex", that is, terminal devices either receive data or send data, but cannot receive and send data at the same time. If the hub's bandwidth is 100mbps, when connected to 10 computers, each computer can share the bandwidth of 10mbps; when connected to 20 computers, each computer can share the bandwidth of only 5mbps.