Prerequisites
Cloud Data Transfer (CDT) for billing of Internet data transfers is in invitational preview. If you want to use this service, contact your customer business manager and apply to be added to a whitelist.
Procedure
1. Activate CDT for EIP
Log on to the CDT console.
Select a region.
Select EIP (Pay-By-Data-Transfer) and click Activate Now to activate CDT for Elastic IP Address (EIP). Then, Internet data transfers that are incurred by EIPs are billed based on tiered pricing.

Read and accept the agreement, and then click Activate.
2. Check the status of CDT
If CDT Activated is shown on the page, CDT is activated for EIP.

3. View bills in CDT
After you active CDT for EIP, EIP bills are generated based on tiered pricing. You can view the bills on the Billing Details tab in the Billing Management console.
Log on to the Billing Management console.
In the left-side navigation pane, click Bill Details.
Click the Billing Details tab.
Click the filter icon in the Product Detail column and select Cloud Data Transfer - Internet.
Then, you can view bills that are generated by CDT for Internet data transfers.

Usage notes
After you activate CDT for a service in a specified region, all existing instances and new instances that belong to this service in the specified region and use the pay-by-data-transfer billing method are billed based on tiered pricing.
After you activate CDT for a service, you cannot change the pricing method from tiered pricing to linear pricing by default. If you want to change the pricing method back to linear pricing, submit a ticket.
If this is the first time that you activate CDT for a service, tiered pricing is activated and the data is acumulated from zero.
After the pricing method is changed to tiered pricing, bills are generated by CDT and classified into the Cloud Data Transfer - Internet category.
After you activate CDT for a service, the cost allocation method of the service becomes invalid because bills are generated by CDT. You must create cost allocation rules based on bills that belong to the Cloud Data Transfer - Internet category.