Frequently asked questions about Cloud Data Transfer (CDT), covering service features, operations, and billing.
FAQ about service features
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Does CDT support centralized billing for subscription services?
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Can I use data transfer plans to offset the fee of data transfers in CDT?
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What services does the CDT resource plan cdt_Freetierbag_dp_cncdt_Freetierbag_dp_intl apply to?
FAQ about operations
FAQ about bills
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Will original Alibaba Cloud services continue to generate bills after CDT is activated?
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How do I query the bills of monthly free 220 GB Internet data transfers?
FAQ about service features
Does CDT support centralized billing for subscription services?
No. CDT aggregates Internet data transfers across Alibaba Cloud services and applies tiered pricing—the larger the transfer volume, the lower the unit price. CDT also supports pay-by-data-transfer metering for services that provide cross-region access. Only the pay-as-you-go billing method is supported.
Can data transfers incurred by Alibaba Cloud services that provide cross-region access be billed based on tiered pricing?
No.
What is tiered pricing?
CDT Internet traffic uses tiered pricing based on cumulative usage. Usage from multiple services is aggregated and billed by region. Total cost equals the sum of each tier's usage multiplied by its unit price.
For more information, see Tiered cumulative billing method example.
Can I use data transfer plans to offset the fee of data transfers in CDT?
Data transfer plans can offset only Tier 1 (0 TB to 10 TB) data transfer fees.
What services does the CDT resource plan cdt_Freetierbag_dp_intl apply to?
The resource plan offsets only the outbound Internet traffic generated by Function Compute instances.
This free quota is automatically issued to users who activated Function Compute before 00:00 on December 19, 2023, because CDT being used to bill the outbound Internet traffic of Function Compute.
FAQ about operations
Does CDT support features such as throttling, instance upgrading, and instance downgrading?
No. CDT handles only centralized billing; resource management features such as bandwidth limits remain with the individual Alibaba Cloud services. After CDT takes effect, the maximum public bandwidth of each service remains unchanged.
FAQ about bills
Will original Alibaba Cloud services continue to generate bills after CDT is activated?
After CDT is activated, CDT centrally bills data transfer fees, while the original Alibaba Cloud services continue to generate other bills such as bandwidth, instance usage, and configuration fees.
How do I query the bills of monthly free 220 GB Internet data transfers?
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Log on to the Expenses and Costs console.
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In the left-side navigation pane of the Expenses and Costs console, choose .
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On the Billing Details tab, select cloud data transfer-internet from the Commodity Name drop-down list and click Search.
In the CDT Internet data transfer bills, the unit price of the monthly free 220 GB is 0. Transfers that exceed the monthly quota are billed based on CDT tiered pricing.
Important220 GB Internet data transfers per month consist of two parts:
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20 GB per month: can be used in regions in the Chinese mainland.
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200 GB per month: can be used only in regions outside the Chinese mainland.
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