Cloud Enterprise Network (CEN) establishes connections among network instances on a global scale. Fees are charged based on the types of network instances and regions where the network instances are created. The Alibaba Cloud account that owns the network instances does not affect how fees are billed. This topic describes the billing rules of CEN.

Billable items

Billable items of CEN:
  • Bandwidth plans: To allow network instances that are created in different regions to communicate with each other, you must purchase a bandwidth plan and allocate bandwidth for cross-region communication. You do not need to purchase a bandwidth plan for network instances that are created in the same region.
  • Connection fees and data transfer fees for transit routers: Transit routers are provided with two editions based on regions: Basic Edition and Enterprise Edition. You are not charged when you use a Basic Edition transit router to connect network instances. When you use an Enterprise Edition transit router to connect network instances, you may be charged a connection fee and a data transfer fee based on the types of the network instances.
    • When you connect an Enterprise Edition transit router to a virtual private cloud (VPC), you are charged a connection fee and a data transfer fee.
    • When you connect an Enterprise Edition transit router to a virtual border router (VBR), you are charged a connection fee.
      Note You are not charged a data transfer fee when you connect a transit router to a VBR. For more information about when Alibaba Cloud starts charging the data transfer fee for VBRs, see the announcements of Alibaba Cloud.
    • When you connect an Enterprise Edition transit router to a Cloud Connect Network (CCN) instance, you are not charged a connection fee or a data transfer fee.
    Note For more information about Basic Edition and Enterprise Edition transit routers, see Transit routers.
Billable item Scenario Billing method Reference
Bandwidth plans Connect network instances across regions
  • Subscription
  • Pay-by-bandwidth
    Note By default, you cannot purchase bandwidth plans that are billed on a pay-by-bandwidth basis. To use this feature, submit a ticket.
Billing of bandwidth plans
Connection fees for transit routers Use Enterprise Edition transit routers that are connected to VPCs or VBRs.

For more information about how to check the edition of a transit router, see View the edition of a transit router.

Charged based on the number of network instances that are connected to all your Enterprise Edition transit routers. Billing of Enterprise Edition transit routers
Data transfer fees for transit routers Use Enterprise Edition transit routers that are connected to VPCs Charged based on the amount of data transfer

Billing example

The following example shows the billing rules of CEN:

In this example, a company uses CEN to connect network instances in the following way:
  • Connect the VPC in the China (Hangzhou) region and the VBR in the Singapore (Singapore) region.
  • Connect the VPC in the China (Hangzhou) region and the VBR in the China (Qingdao) region.
  • Connect the VPC in the China (Hangzhou) region and the Smart Access Gateway (SAG) instance in mainland China.
  • Connect the VBR in the China (Qingdao) region and the SAG instance in mainland China.
  • Connect the VBR in the China (Qingdao) region and the VBR in the Singapore (Singapore) region.
  • Do not connect the SAG instance in mainland China and the VBR in the Singapore (Singapore) region.
CEN billing example
Fees that are charged in Area A, Area B, and Area C:
  • Area A:
    • You are charged a connection fee for connecting the Enterprise Edition transit router in the China (Hangzhou) region to the VPC in the China (Hangzhou) region.
    • You are charged a data transfer fee for transmitting data from the VPC in the China (Hangzhou) region to the Enterprise Edition transit router in the China (Hangzhou) region.
  • Area B: You are charged a connection fee for connecting the Enterprise Edition transit router in the Singapore (Singapore) region to the VBR in the same region. You are not charged for transmitting data between the Enterprise Edition transit router in the Singapore (Singapore) region and the VBR in the same region.
  • Area C: To enable network instances in the following region pairs to communicate with each other, you must purchase a bandwidth plan for data transmission between mainland China and the Singapore (Singapore) region. Then, allocate bandwidth for data transmission across these regions: China (Hangzhou) and China (Qingdao), China (Hangzhou) and Singapore (Singapore), and China (Qingdao) and Singapore (Singapore).

    You do not need to allocate bandwidth for cross-region data transmission if you want the SAG instance in mainland China to communicate with the VPC in the China (Hangzhou) region or the VBR in the China (Qingdao) region. For more information about the areas of CCN and regions of CEN, see Introduction to CCN.