Before talking about edge computing nodes, let's first understand what edge computing is:
Edge computing and cloud computing are complementary and interdependent. Furthermore, edge computing is actually an extension of cloud computing, which marginalizes some capabilities of cloud computing, and decentralizes some data processing and other services at the edge. In addition, it is the autonomy of edge services. In the state of disconnection between devices, edge computing can process data independently to achieve stable operation of the device.
What are edge computing nodes?
The word "edge" refers to edge nodes. This is a network concept, and edge nodes refer to those nodes that are very close to users and not on the backbone network. When a user accesses information in the network, the request will first reach the edge node, and then the edge node will gradually forward it to the core node. The CDN nodes deployed by the CDN are actually edge nodes. In this way, when users request static resources, they can be obtained on the edge nodes instead of being obtained from the core nodes after layer-by-layer forwarding. At present, the overall edge computing nodes are in the initial stage of layout and development.
"Edge computing" is to carry out calculations on edge nodes. Before that, if there is computing work, the edge node needs to forward the request to the core node for processing. With edge computing, computing work can be carried out on edge nodes close to users, instead of going to core nodes.
The edge node is located between the user terminal and the cloud center, and is closer to the user (data source) than the traditional cloud center edge node.
Compared with the cloud data center, the edge node has the characteristics of miniaturization, multi-access distribution and closer to the user (the last mile). Massive data does not need to be uploaded to the cloud for processing, so that data can be processed at the edge of the network, reducing Request response time, improve battery life, reduce network bandwidth while ensuring data security and privacy.
Three advantages of edge computing:
Edge computing is close to the user end/data end
Edge computing saves bandwidth costs and reduces transmission delays
Edge computing enables local computing
In general, the main advantage of edge computing is "decentralization".