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.

ItemStandard GA instanceBasic GA instanceReference
GA instancesSpecification selectionSupportedN/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 downgradesSupportedN/A
Basic instance information updateSupportedSupported
Instance renewalSupportedSupported
Basic bandwidth plansBasicSupportedSupportedPurchase and manage basic bandwidth plans
EnhancedSupportedNot supported
PremiumSupportedSupported
Specification changes for basic bandwidth plans
SupportedSupported
Basic bandwidth plan replacementSupportedSupported
Basic bandwidth plan disassociationSupportedSupported
Acceleration areasMultiple acceleration areasSupportedNot supported
Bandwidth allocation for acceleration regions
  • Elastic IP Address: supported.
  • Anycast EIP: not supported.
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 addressesSupportedNot supported
Bandwidth modification for acceleration regions
  • Elastic IP Address: supported.
  • Anycast EIP: not supported.
Not supported
Removal of acceleration regionsSupportedSupported
ListenersTCP, UDP, HTTP, and HTTPS listenersSupportedN/AOverview
Intelligent routing listeners and custom routing listeners
SupportedN/A
Endpoint groups and endpointsMultiple endpoint groups and endpointsSupportedNot supported
Traffic distribution ratios for endpoint groups
  • Intelligent Routing: supported.
  • Custom Routing: not supported.
Not supported
Endpoint weights
  • Intelligent Routing: supported.
  • Custom Routing: not supported.
Not supported
Health check
  • Intelligent Routing: supported.
  • Custom Routing: not supported.
Not supported
CNAMESupportedNot supportedAdd a CNAME record for a domain name
Access controlSupportedNot supportedAccess control
Access logsSupportedNot supportedWork with access logs
Origin probingSupportedNot supportedOrigin probing
Instance monitoringSupportedSupportedMonitoring and alerting

Limit comparison

ItemStandard GA instanceBasic 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
41
Note For more information about the limits on standard GA instances and basic GA instances, see Limits.