This topic compares the features and limits of standard Global Accelerator (GA) instances with those of basic GA instances.
Feature comparison
The following table describes the features that are supported by different types of GA instances.
| Item | Standard GA instance | Basic GA instance | Reference | |
|---|---|---|---|---|
| GA instances | Specification selection | Supported | N/A |
|
| Accelerated IP address type selection | Supported. You can apply for the Anycast support privilege in the Quota Center console. | Not supported. Services are provided through Elastic IP Address (EIP). | ||
| Upgrades and downgrades | Supported | N/A | ||
| Basic instance information update | Supported | Supported | ||
| Instance renewal | Supported | Supported | ||
| Basic bandwidth plans | Basic | Supported | Supported | Purchase and manage basic bandwidth plans |
| Enhanced | Supported | Not supported | ||
| Premium | Supported | Supported | ||
Specification changes for basic bandwidth plans | Supported | Supported | ||
| Basic bandwidth plan replacement | Supported | Supported | ||
| Basic bandwidth plan disassociation | Supported | Supported | ||
| Acceleration areas | Multiple acceleration areas | Supported | Not supported |
|
Bandwidth allocation for acceleration regions |
| Not supported. By default, the bandwidth that is allocated to an acceleration region is the same as the bandwidth limit of the basic bandwidth plan. | ||
| Accelerated IPv6 addresses | Supported | Not supported | ||
Bandwidth modification for acceleration regions |
| Not supported | ||
| Removal of acceleration regions | Supported | Supported | ||
| Listeners | TCP, UDP, HTTP, and HTTPS listeners | Supported | N/A | Overview |
Intelligent routing listeners and custom routing listeners | Supported | N/A | ||
| Endpoint groups and endpoints | Multiple endpoint groups and endpoints | Supported | Not supported | |
Traffic distribution ratios for endpoint groups |
| Not supported | ||
| Endpoint weights |
| Not supported | ||
| Health check |
| Not supported | ||
| CNAME | Supported | Not supported | Add a CNAME record for a domain name | |
| Access control | Supported | Not supported | Access control | |
| Access logs | Supported | Not supported | Work with access logs | |
| Origin probing | Supported | Not supported | Origin probing | |
| Instance monitoring | Supported | Supported | Monitoring and alerting | |
Limit comparison
| Item | Standard GA instance | Basic GA instance |
|---|---|---|
| Types of backend servers | Elastic Compute Service (ECS) instances, Classic Load Balancer (CLB) instances, Application Load Balancer (ALB) instances, Object Storage Service (OSS) buckets, Alibaba Cloud public IP addresses, vSwitches, and IP addresses or domain names of custom origin servers. By default, you cannot specify Elastic Compute Service (ECS) instances in virtual private clouds (VPCs), internal-facing Classic Load Balancer (CLB) instances, or internal-facing Application Load Balancer (ALB) instances as endpoints for standard GA instances. To specify these instances as endpoints, contact your account manager. | Secondary elastic network interfaces (ENIs), ECS instances, and CLB instances that are deployed in VPCs |
Maximum number of acceleration areas that can be added to a GA instance | Multiple Varies based on the instance specifications. For more information, see Specifications of GA instances. | 1 |
Maximum number of endpoint groups that can be added to a GA instance | Multiple Varies based on the type and quantities of the listeners added to the GA instance For more information, see Overview. | 1 |
Maximum number of endpoints that can be added to an endpoint group | 4 | 1 |
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