This topic describes how to plan your cloud enterprise network (CEN) before you use it to connect network instances. You can attach the following network instances to a CEN instance: virtual private clouds (VPCs), virtual border routers (VBRs) that are connected to on-premises data centers, and cloud connect networks (CCNs) that are connected to regional branches and headquarters. The procedure varies based on the regions and accounts to which the required network instances belong. Before you use a CEN instance to connect network instances, you must consider the regions and accounts to which the network instances belong.

Connect network instances that are deployed in the same region and belong to the same account

If the network instances and your CEN instance belong to the same account and the network instances are deployed in the same region, you can directly connect the network instances by attaching them to your CEN instance.

Information of network instances:

Same region and account

Procedure:

Procedure

Connect network instances that belong to the same account but are deployed in different regions

If the network instances and your CEN instance belong to the same account but the network instances are deployed in different regions, you must set the cross-region bandwidth to connect the network instances.

Information of network instances:

Same account but different regions

Procedure:

Procedure

Connect network instances that are deployed in the same region but belong to other accounts

If the network instances are deployed in the same region but belong to other accounts, you must contact the network instance owners. You must acquire the permissions to attach their network instances to your CEN instance.

Information of network instances:

Same region but other accounts

Procedure:

Procedure

Connect network instances that are deployed in different regions and belong to other accounts

If the network instances are deployed in different regions and belong to other accounts, you must contact the network instance owners. You must acquire the permissions to attach their network instances to your CEN instance. In addition, after you attach the network instances to your CEN instance, you must set the cross-region bandwidth for cross-region communication.

Information of network instances:

Different regions and other accounts

Procedure:

Procedure