What is the difference between traditional networking and SD-WAN networking?

If you use traditional networking solutions, you will need to apply for a dedicated network and dedicated line. At the same time, five locations will also need fixed public network IPs and corresponding network servers. This not only requires a lot of money, but also requires professional operation and maintenance personnel. By using the network, you only need to deploy a communication router in each place, and then simply set it up in the cloud management background to realize interconnection and data interaction in multiple places. The whole process does not even require the participation of professional operation and maintenance personnel.