Basic knowledge of network construction, basic knowledge of networking? , What are the basic knowledge of network construction?

Hi everyone, today the editor has paid attention to a more interesting topic, which is about the basic knowledge of network construction, so the editor has compiled 2 related introductions about the basic knowledge of network construction The answer, let's take a look. Basic knowledge of networking? How to build a network? Basic knowledge of networking? The basic knowledge of networking refers to the basic knowledge needed to build a computer network, including network types, network topologies, and network protocols. The following is a summary of the basic knowledge of networking: 1. Network type: 1. Local area network (LAN): used to connect multiple computers and devices within a small geographic area, such as homes and offices. 2. Wide Area Network (WAN): Used to connect multiple local area networks within a large geographical area, usually connecting computers and devices in different regions through the Internet. 3. Metropolitan Area Network (MAN): Between the LAN and the WAN, its scope is usually a city or a university campus. 2. Network topology: 1. Bus topology: All devices are connected to a bus and transmit data through the bus. 2. Star topology: All devices are connected to a central device (such as a switch), and data is forwarded through the central device. 3. Ring topology: devices are connected in a ring, each device is connected to two adjacent devices, and data is transmitted along the ring. 4. Mesh topology: Every device is connected to every other device, and data can be transmitted through multiple paths. 3. Network protocol: 1. TCP/IP protocol: It is the most widely used protocol suite on the Internet, including TCP, IP, UDP and other protocols, used to realize reliable data transmission on the network. 2. Ethernet protocol: It is used for communication between devices in the local area network, and defines the rules and formats of data transmission. 3. DNS protocol: used to resolve the correspondence between domain names and IP addresses, and convert domain names to IP addresses. 4. HTTP protocol: A protocol used to transmit hypertext between web browsers and servers. Fourth, network equipment: 1. Router (Router): used to forward data packets between different networks. 2. Switch (Switch): Used to forward data packets within the LAN. 3. Firewall (Firewall): used to protect network security, monitor and filter traffic entering and leaving the network. 4. Gateway (Gateway): used to connect different types of networks to achieve communication between different networks. The above is a brief summary of the basic knowledge of networking, and I hope it will be helpful to you. For in-depth understanding, please refer to relevant materials and tutorials. How to build a network? Step 1. Regarding how to establish a local area network, first make several network cables according to the physical location and distance, and ensure the connectivity of the network cables through testing. In terms of making network cables, there are two wiring methods, one is parallel wiring, which is suitable for interconnection of different types of equipment; the other is cross wiring, which is suitable for interconnection between the same type of equipment. Most devices now recognize both parallel and crossover wiring. Step 2. Use a network cable to connect the LAN port of the hub or router to the computer network card interface. Especially for routers, in order to build a local area network, make sure that all LAN interfaces are connected to computer network cards. Step 3. Make sure that the network card drivers of each computer are installed normally. Test method: Open the "Run" dialog box, enter the command "ping 127.0.0.1 -t", and the following interface prompt will appear, indicating that the installation is normal. Otherwise, download the corresponding latest driver and reinstall it. Step 4. Set the IP address of each computer. Generally speaking, for LAN users, the recommended IP address range is "192.168.1.1" to "192.168.1.254". For each computer, it should be specified within this range and unique IP, subnet mask: "255.255.255.0", other items are processed by default. How to set the IP address: Right-click "Local Area Connection" to enter the "Local Area Connection Properties" dialog box, double-click "Internet Protocol Version 4 (Tcp/IP)" to open the setting dialog box, and enter the IP address and subnet mask. Step 5. After the IP setting of each computer is completed, the interoperability test between each computer is carried out. Test method: Open the "Run" dialog box, and test it by commanding "ping 192.168.1.X" (X represents the last group of numbers of any computer's system IP) on any computer. If the following interface appears, it means that the network connected. At this point, the entire LAN is built. Step 6. If the number of computers in the LAN is more than the number of hubs or router interfaces, multiple hubs or routers can be connected to expand the network range. The specific method is: the hub or router can be connected through the LAN port to expand the network. The only thing to note is that the WAN port of the router should not be used as an interface for expanding the network. The interface is used to connect ADSL or broadband. So far, the above is the introduction of the editor's basic knowledge of network construction. I hope that the two-point answer about the basic knowledge of network construction will be useful to everyone.