You can use Cloud Enterprise Network (CEN) to enable network communication between cloud networks, between on-premises and cloud networks, and between inter-region networks. This topic describes the procedure for using CEN and provides use cases.
Prerequisites
The CIDR blocks of the networks that you want to connect do not overlap.
Procedure
Use cases
Enterprise Edition transit routers
| Scenario | References |
|---|---|
| Use CEN and Enterprise Edition transit routers to connect virtual private clouds (VPCs) to data centers in the same region. | Use Enterprise Edition transit routers to enable intra-region communication between on-premises and cloud networks |
| Use CEN and Enterprise Edition transit routers to connect VPCs that belong to different regions and Alibaba Cloud accounts. | Use Enterprise Edition transit routers to connect VPCs across regions and accounts |
Basic Edition transit routers
Beginning Mach 31, 2022, Basic Edition transit routers are supported only in Cloud Connect Network (CCN) regions. Other regions support only Enterprise Edition transit routers by default. If you have Basic Edition transit routers in regions that no longer support Basic Edition transit routers, we recommend that you upgrade the Basic Edition transit routers to Enterprise Edition, which supports more features and a greater networking capacity. For more information, see Upgrade Basic Edition transit routers.
| Scenario | References |
|---|---|
| Use CEN and Basic Edition transit routers to connect VPCs that are in the same region. | Use Basic Edition transit routers to connect VPCs in the same region |
| Use CEN and Basic Edition transit routers to connect VPCs that belong to different regions and Alibaba Cloud accounts. | Use Basic Edition transit routers to connect VPCs across regions |