What Does the Backbone Do?

Backbone Network is a high-speed network used to connect multiple areas or regions. Each backbone network has at least one connection point for interconnection with other backbone networks. Different network providers have their own backbone networks to connect their networks in different regions.

Internet backbone: Internet backbone network

Several computers are connected to each other to see other people's files. This is called a local area network. Computers throughout the city are connected.

"Backbone network" is often used to describe the structure of large networks, describing the network structure, mainly to see clearly

First of all, the concept of backbone network exists in many networks, such as IP metropolitan area network, IP bearer network, etc. The so-called backbone network is a network composed of core network element equipment located at the upper layer of the network structure. Secondly, in view of this problem, I guess that the landlord wants to ask is the relationship between the core network and the backbone network of the bearer network. Each prefecture city (prefecture city: city-level city) basically has its own local core network switch room, which completes local and foreign traffic transfer and data transmission. If you want to exchange services with other places, then you need to rely on a reliable transmission network to complete this task. Therefore, this reliable network provides an "interface" (actually equipment), and we can put the core network in The network element equipment at the border is connected to the "interface" of that reliable transmission network. This interface enters the backbone network to complete the transmission task after going up. Simply put, the bearer network is the national power grid, and the core network is the network of each power station. To complete the overall planning of each power station, it must be connected to the national power grid. ^[3]