Endpoint group FAQ-Global Accelerator(GA)-阿里云帮助中心

Frequently asked questions about endpoint groups, including supported regions, egress IP addresses, and endpoint types.

Can I use Global Accelerator if my origin server is in a region that Global Accelerator does not support?
How do I find the egress public IP addresses of an endpoint group?
What endpoint types does Global Accelerator support?

Using Global Accelerator with an unsupported origin region

Yes.

When you configure the region for an endpoint group, select the region that is closest to your origin server. Global Accelerator forwards incoming requests to the optimal endpoint in the endpoint group.

Finding egress public IP addresses

To view the egress public IP addresses of an endpoint group, perform the following steps in the Global Accelerator console:

Log on to the Global Accelerator console.
On the Instances page, find the Global Accelerator instance and click Configure Listener in the Actions column.
On the Listeners tab, find the target listener and click View Endpoint Group in the Actions column.
On the Endpoint Group tab, find the target endpoint group, and in the Endpoint Group IPs column, view the endpoint egress public IP addresses in the region of the endpoint group.

Note

The system assigns at least four endpoint egress public IP addresses to each endpoint group. The specific number of IP addresses also depends on the billing method of the instance:

Pay-as-you-go: The number of IP addresses depends on the amount of service traffic. When service traffic changes, the CIDR blocks and IP addresses for endpoint egress traffic are elastically scaled.

You can call API operations to query this information. For more information, see ListEndpointGroups and ListEndpointGroupIpAddressCidrBlocks.
Subscription: The number of IP addresses depends on the instance specifications. When you upgrade or downgrade an instance, endpoint egress public IP addresses may be added or removed.

You must manually confirm newly added public IP addresses for endpoint egress traffic before they can become active. You can confirm them in the console as prompted, or by calling the UpdateAcceleratorConfirm operation.

Supported endpoint types

Supported endpoint types vary by Global Accelerator instance type and deployment location.

Instance type	Deployment	Endpoint type
standard GA instance	Alibaba Cloud	ECS ALB NLB CLB OSS ENI custom private IP address Alibaba Cloud Public IP vSwitch This endpoint type is supported only by custom routing listeners.
standard GA instance	Outside Alibaba Cloud	custom public IP address Custom Domain Name
basic GA instance	Alibaba Cloud	ENI ECS CLB NLB

Note

If your standard GA instance does not support backend service types such as ECS (VPC type), ALB, NLB, CLB (VPC type), ENI, or Custom Private IP Address, the instance version may be outdated. To use these features, contact your business manager to request an instance upgrade.
To use GA to accelerate an unsupported Alibaba Cloud backend service type or an on-premises IDC service over a private connection, you can add an endpoint of the Custom Private IP Address type.
For a basic GA instance, only the following endpoint types are supported: secondary ENIs, CLB instances in a VPC, private NLB instances, and ECS instances. You cannot add ENI, CLB, NLB, or ECS instances that are associated with a public IP address (including an EIP or a static public IP address) as endpoints.

For more information about endpoint types, see Endpoints of standard GA instances and Endpoints of basic GA instances.