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VPC Peering Connection

Updated on 2024-10-25 GMT+08:00
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.
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.
Figure 1 Two VPCs connected by a VPC peering connection
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