Updated on 2024-10-15 GMT+08:00
VPC Peering Connection
A VPC peering connection enables two VPCs in the same region to communicate using private IP addresses. The VPCs to be connected can be from the same account or different accounts.
- If you want to connect VPCs in different regions, use Cloud Connect.
- You can use VPC peering connections to build different networks. For details, see VPC Peering Connection Usage Examples.
Figure 1 shows an application scenario of VPC peering connections.
- There are two VPCs (VPC-A and VPC-B) in region A that are not connected.
- Service servers (ECS-A01 and ECS-A02) are in VPC-A, and database servers (RDS-B01 and RDS-B02) are in VPC-B. The service servers and database servers cannot communicate with each other.
- You need to create a VPC peering connection (peering-AB) between VPC-A and VPC-B so the service servers and database servers can communicate with each other.
Parent topic: Basic Concepts
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