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This article mainly explains "what is the meaning of web network node". The content of the explanation is simple and clear, and it is easy to learn and understand. Please follow the editor's train of thought to study and learn "what is the meaning of web network node"?

A network node means that a computer or other device is connected to a network with an independent address and the function of transmitting or receiving data; the node can be a workstation, a customer, a network user or a personal computer. it can also be servers, printers and other network-connected devices; every workstation, server, terminal device, network device.

This article operating environment: Windows7 system, Dell G3 computer.

What does a network node mean?

A network node means that a computer or other device is connected to a network with an independent address and the function of transmitting or receiving data. Nodes can be workstations, customers, network users, or personal computers, as well as servers, printers, and other network-connected devices. Every workstation, server, terminal device, network device, that is, the device with its own unique network address, is a network node. The whole network is composed of so many network nodes, which connect many network nodes with communication lines to form a certain geometric relationship, which is the computer network topology.

Core node

The topology of backbone network is logically divided into two layers, namely, core layer and large area layer.

Core layer

The core layer is composed of the core nodes of Beijing, Shanghai, Guangzhou, Shenyang, Nanjing, Wuhan, Chengdu, Xi'an and other 8 cities.

The main function of the core layer is to provide interconnection with the international internet and to provide access to the exchange of information between regions. Among them, Beijing, Shanghai and Guangzhou core layer nodes are each equipped with international export routers, which are responsible for interconnecting with international internet, and two core routers are interconnected with other core nodes; other core nodes are each equipped with a core router.

There is an incomplete mesh structure between the core nodes. In the three-center structure with Beijing, Shanghai and Guangzhou as the center, the other core nodes are connected to the three centers by at least two high-speed ATM links.

According to the traffic information, the coverage is as follows:

Beijing is responsible for areas: Beijing, Hebei, Inner Mongolia, Shanxi, Liaoning, Henan, Jilin, Heilongjiang, Shandong

Shanghai responsible areas: Shanghai, Zhejiang, Jiangsu, Anhui, Hubei, Tianjin, Jiangxi, Shaanxi, Gansu, Qinghai, Ningxia, Xinjiang, Guangxi

Guangzhou is responsible for areas: Guangdong, Fujian, Hunan, Hainan, Sichuan, Yunnan, Guizhou, Xizang, Chongqing, Guangxi

Large regional layer

According to the administrative division, the 31 provincial capital cities in China are divided into 8 regional networks centering on the above 8 core nodes, which together constitute the regional layer. Each region has two exits, and other non-export nodes in the region are connected to the two exits respectively.

The theater layer mainly provides the information exchange in the region and the information path for the access network to access the chinanet.

Communication between theaters must pass through the core layer.

Node address

Each network node gets a unique address through the network card. When each network card leaves the factory, the manufacturer will solidify a unique media access layer (Media Access Control) address in the world, and it is impossible for users to change this address. This kind of address arrangement is just like our daily home address. Is used to distinguish their identities. Your network must be able to distinguish this address from the other addresses. In the network, there are a lot of data packets will be transmitted from one network node to another network node, at the same time to make sure that the packet will be correctly delivered to the destination, and this destination must rely on this network card address to identify.

Thank you for your reading, the above is the content of "what is the meaning of web network nodes". After the study of this article, I believe you have a deeper understanding of what web network nodes mean, and the specific use needs to be verified in practice. Here is, the editor will push for you more related knowledge points of the article, welcome to follow!

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