Help Center/ Cloud Connect/ Service Overview/ Application Scenarios
Updated on 2025-04-28 GMT+08:00
View PDF
Share

Application Scenarios

Cloud Connection Application Scenarios

A cloud connection enables communication between VPCs in different regions and between VPCs and on-premises data centers.

  • Connecting VPCs in the same region to set up a single private network

    By default, VPCs in the same region can communicate with each other after they are loaded to a cloud connection.

    Figure 1 Communication between VPCs in the same region
  • Connecting VPCs in different regions to set up a private network

    With a cloud connection, you can connect VPCs across regions to establish a secure, reliable private network, which improves network topology flexibility.

    Figure 2 Communication between VPCs in different regions
  • Connecting on-premises data centers to VPCs in different regions to set up a hybrid cloud network

    If you want to establish connectivity between multiple on-premises data centers and VPCs in different regions, you can use Direct Connect to connect each data center to the corresponding VPC and then load all the virtual gateways and VPCs to a cloud connection.

    Figure 3 Communication between on-premises data centers and VPCs across regions

Central Network Application Scenarios

A central network enables enterprise routers in different regions to communicate with each other. It also enables communication between enterprise routers and on-premises data centers, no matter whether they are in the same region or different regions.

  • Connecting VPCs in different regions by attaching them to enterprise routers in the corresponding regions

    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 4 Cross-region communication between enterprise routers
  • Connecting on-premises data centers to VPCs in different regions by attaching them to enterprise routers in the corresponding regions

    Enterprise routers and global DC gateways are added to a central network as attachments. In this way, multiple VPCs can communicate with on-premises data centers across regions.

    Figure 5 Communication between enterprise routers and on-premises data centers
  • By flexibly changing the central network policies, you can set up a global network more conveniently.