You can connect different VPC instances through peering connections or a CCN.

Peering Connections

You can establish peering connections to interconnect two VPC instances under the same or different accounts.

• Creating a peering connection for intra-account VPC communication
• Creating a peering connection for cross-account VPC communication

CCNs

You can use a CCN to interconnect two or more VPC instances. A CCN supports interconnection between VPC instances under the same or different accounts and interconnection between VPC instances and IDCs.

• Interconnection between network instances under the same account
• Interconnection between network instances under different accounts