Overview

What Is a Central Network?

Relying on the cloud backbone network, a central network allows you to easily build a reliable, intelligent enterprise-grade network and manage global network resources on premises and on the cloud. By setting up a central network, you can enable communication between enterprise routers, as well as between enterprise routers and your on-premises data center, in the same region or different regions.

For details about the regions where central networks are available, see Region Availability.

Application Scenarios

• Cross-region communication on the cloud: Enterprise routers in different regions are added to a central network as attachments so that resources in these regions can communicate with each other over one network.
  Figure 1 Cross-region communication between enterprise routers
  
• Communication between on-premises data centers and the cloud: Enterprise routers and global DC gateways are added to a central network as attachments. In this way, multiple VPCs on the cloud can communicate with on-premises data centers across regions.
  Figure 2 Connectivity between enterprise routers and an on-premises data center
  
• Global network: By flexibly changing the central network policies, you can build a global network more conveniently.

Process for Using a Central Network to Manage Network Resources

Figure 3 shows the process of configuring a central network to manage global network resources.

Figure 3 Configuration process