This topic provides answers to some frequently asked questions about bandwidth plans of Global Accelerator (GA).

What types of bandwidth plan does GA provide?

GA provides the following two types of bandwidth plan:
  • Basic bandwidth plan: A basic bandwidth plan provides bandwidth for data transfer over the Internet and within Alibaba Cloud. However, a basic bandwidth plan cannot be used for acceleration between the Chinese mainland and regions outside the Chinese mainland. To accelerate data transfer, you must purchase a basic bandwidth plan. For more information, see Overview.
  • Cross-border acceleration bandwidth plan: A cross-border acceleration bandwidth plan provides bandwidth for data transfer between the Chinese mainland and regions outside the Chinese mainland. You can purchase a bandwidth plan of this type to accelerate data transfer between the Chinese mainland and regions outside the Chinese mainland. For more information, see Overview.

Do standard acceleration bandwidth and enhanced acceleration bandwidth have differences in terms of bandwidth quality?

No.

Standard acceleration bandwidth and enhanced acceleration bandwidth apply to different scenarios, but provide the same bandwidth quality. For more information, see Overview.

What are the scenarios that premium acceleration bandwidth applies to?

Premium acceleration bandwidth is suitable for scenarios where both the acceleration region and the service region are outside the Chinese mainland. Premium acceleration bandwidth can accelerate Internet-facing services whether the services are deployed on or off Alibaba Cloud. To accelerate data transfer between the Chinese mainland and regions outside the Chinese mainland, you must select China (Hong Kong) as the acceleration region.

If I want to associate a cross-border acceleration bandwidth plan with a GA instance, do I also need to associate a basic bandwidth plan with the GA instance?

Yes.

A basic bandwidth plan provides bandwidth for data transfer over the Internet and within Alibaba Cloud. To accelerate data transfer, you must purchase a basic bandwidth plan.

Can I request a refund after I purchase a cross-border acceleration bandwidth plan?

No.

How do I upgrade or downgrade a bandwidth plan?

Only accounts that are included in the whitelist can downgrade bandwidth plans. To downgrade a bandwidth plan, submit a ticket. For more information, see Change specifications of basic bandwidth plans and Change specifications of cross-border acceleration bandwidth plans.

Does a bandwidth plan downgrade cause network interruptions?

No.

What do I do if an error is prompted when I disassociate a bandwidth plan from a GA instance?

Before you disassociate a basic bandwidth plan from a GA instance, make sure that you have deleted the acceleration areas and listeners of the GA instance. For more information, see Delete a listener and Delete an acceleration area.

If you want to disassociate a cross-border acceleration bandwidth plan from a GA instance, make sure that you are familiar with the rules. For more information, see Disassociate a cross-border acceleration bandwidth plan.