What equipment is needed to establish an enterprise internal network?

Equipment required to establish an enterprise's internal network: 1. Router is a hardware device that connects two or more networks. It acts as a gateway between networks and is used to realize the connection between devices in two different network segments. connection; 2. Switch, which can realize the interconnection of multiple computers and realize the connection between two devices in the same network segment; 3. Network card and network cable. The network card can decompose the data into data packets and then send them to the network. The network cable Used to connect computers to computers, computers to other network devices.

The operating environment of this tutorial: Windows 7 system, Dell G3 computer.

The internal network of an enterprise is a kind of local area network.

A local area network is naturally a regional network formed in a local area. Its characteristic is that the distribution area is limited, which can be large or small. It can be as large as the connection between a building and an adjacent building, or as small as an office. the relationship between. Compared with other networks, the LAN itself has faster transmission speed, more stable performance, simple framework, and closed nature, which is why many organizations choose it.

The local area network itself is generally composed of three major parts: computer equipment, network connection equipment, and network transmission media. Among them, computer equipment includes servers and workstations, and network connection equipment includes network cards, hubs (switches), Switch and network transmission medium are simply network cables, which are composed of three major components: coaxial cables, twisted pairs and optical cables.

Equipment required to establish an enterprise internal network (LAN)

1. Router

Router (Router) is a hardware device that connects two or more networks. It acts as a gateway between networks. It is a dedicated intelligent network device that reads the address in each data packet and then decides how to transmit it. It can understand different protocols, such as the Ethernet protocol used by a local area network and the TCP/IP protocol used by the Internet. In this way, the router can analyze the destination addresses of data packets from various types of networks, convert the addresses of non-TCP/IP networks into TCP/IP addresses, or vice versa; and then route each data packet according to the selected routing algorithm. Deliver the best route to the specified location. So the router can connect non-TCP/IP networks to the Internet.

A router has two functions, one is to connect different networks, and the other is to select the route for information transmission. It is the best solution for sharing a broadband connection. With the advantages of easy use, easy management and zero maintenance, it has become the first choice device for Internet shared access.

Choosing a router is the same as choosing a computer. You must first look at the hardware. Hardware is the basis for the operation of the router. The hardware model is good and of high quality. The router not only has stable functions, but also can expand its functions. For example, the number of access computers. Generally, mid-to-high-end access routers can support 100 PCs. In addition to IP sharing and routing functions, they also have firewall, time management, DMZ and other functions. Another example is large-capacity memory and flash memory. Provides powerful processing capabilities for routers.

2. Switch

Switch means "switch" and is a network device used for forwarding electrical (optical) signals. It can provide an exclusive electrical signal path for any two network nodes connected to the switch.

Switch, the follow-up product of this hub, is incomparable to the former in terms of speed and functions. Its main function is to realize the interconnection and interoperability of multiple computers, and is used to realize the connection between two devices on the same network segment.

A network switch is a device that expands the network and can provide more connection ports in a subnetwork to connect more computers. With the development of the communications industry and the advancement of informatization of the national economy, the network switch market has shown a steady upward trend. It is cost-effective, highly flexible, relatively simple and easy to implement. Ethernet technology has become the most important LAN networking technology today, and network switches have become the most popular switches

3, network card, network cable

Network card Also known as NIC, which means Network Interface Card (network interface card), its function is to break down data into packets and then send them to the network. Currently, there are mainly PCI interface network cards on the market.

Network cables are cables that connect computers to computers, and computers to other network devices.

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