This topic provides answers to some frequently asked questions (FAQ) 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 resources for data transmission worldwide over the Internet and the internal network of Alibaba Cloud. However, a basic bandwidth plan cannot be used for acceleration between mainland China and regions outside mainland China. To accelerate transmission of network traffic, 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 resources for data transmission between mainland China and regions outside mainland China. You can purchase a bandwidth plan of this type to accelerate transmission of network traffic between mainland China and regions outside mainland China. For more information, see Overview.

Is there a difference in quality between standard acceleration bandwidth and enhanced acceleration bandwidth?

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 of premium acceleration bandwidth?

Premium acceleration bandwidth is suitable for scenarios where both the acceleration region and the service region are outside mainland China. Premium acceleration bandwidth can accelerate Internet-facing services whether the services are deployed on or off Alibaba Cloud. To accelerate access from mainland China to regions outside mainland China, 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 transmission over the Internet and within Alibaba Cloud. To accelerate transmission of network traffic, 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?

Downgrades are available for only users in a whitelist. To downgrade a bandwidth plan, submit a ticket. For more information, see Modify a basic bandwidth plan and Modify a cross-border acceleration bandwidth plan.

Does a bandwidth plan downgrade cause network interruptions?

No.

What can 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 Unbind a cross-border acceleration bandwidth plan.