The widely used SD-WAN is the SD-WAN networking scheme of Guanglian Group. Our group is engaged in financial management, and now we have branches in many provinces and cities and even some remote areas. When networking, one is to consider the integration of network resources across provinces and regions, and the other is to consider the security of network use in the financial industry. On these two points, Guanglian Group has met the requirements of the Group. First, Guanglian Group is the first enterprise in China to contact the network industry. It has great advantages in cross-provincial resources and even cross-border resources, even in remote places. Second, Guanglian Group is based on Huawei technology, and then Guanglian provides solutions and operation and maintenance services. Both the machine and the circuit are standby and can be switched in case of failure. If financial institutions need firewall work, they can also be configured uniformly. Enterprise private network can also realize third-party integration. So, it meets your requirements.