Alibaba Cloud sets default quotas on the cloud resources and API operations for each Alibaba Cloud account. You can apply for increases on some of the quotas based on your business requirements. This topic describes the quotas of Application Load Balancer (ALB), the default values of the quotas, and whether the quotas can be increased.
Quotas are set on a per-region or per-account basis. Quotas are categorized into the following types:
General quotas: the limits on cloud resources that are available to an Alibaba Cloud account.
API rate limits: the limits on API calls that an Alibaba Cloud account can make in a specific period of time. API rate limits are also known as QPS limits.
Privileges: the permissions to use advanced features. Privileges are granted by Alibaba Cloud to an account. You can apply for ALB privileges to use ALB advanced features that are unavailable to users by default.
ALB provides general quotas, API rate limits, and privileges. You can apply for increases on some of the quotas. You can view and manage quotas in the Alibaba Cloud Quota Center console or on the Quota Center page of the ALB. For more information about how to manage ALB quotas, see Manage ALB quotas.
General quotas
The following table describes the general quotas of ALB.
The quotas listed in this topic are for reference only. The actual quotas in the console shall prevail.
Instance quotas
Quota name | Description | Default value | Maximum value | Adjustable |
alb_quota_loadbalancers_num | Maximum number of ALB instances that each Alibaba Cloud account can have in a region | 60 | 150 |
Basic ALB instance quotas
Quota name | Description | Default value | Maximum value | Adjustable |
alb_quota_loadbalancer_certificates_num_basic_edition | Maximum number of additional certificates that can be added to an ALB instance (excluding default certificates) | 10 | 150 | |
alb_quota_loadbalancer_rules_num_basic_edition | Maximum number of forwarding rules that can be configured for an ALB instance (excluding default forwarding rules) | 40 | 100 | |
alb_quota_loadbalancer_servers_num_basic_edition | Maximum number of backend servers that can be added to an ALB instance | 200 | 400 | |
alb_quota_loadbalancer_listeners_num_basic_edition | Maximum number of listeners that can be added to an ALB instance | 50 | 80 |
Standard ALB instance quotas
Quota name | Description | Default value | Maximum value | Adjustable |
alb_quota_loadbalancer_certificates_num_standard_edition | Maximum number of additional certificates that can be added to an ALB instance (excluding default certificates) | 25 | 300 | |
alb_quota_loadbalancer_rules_num_standard_edition | Maximum number of forwarding rules that can be configured for an ALB instance (excluding default forwarding rules) | 100 | 200 | |
alb_quota_loadbalancer_servers_num_standard_edition | Maximum number of backend servers that can be added to an ALB instance | 1,000 | 1,500 | |
alb_quota_loadbalancer_listeners_num_standard_edition | Maximum number of listeners that can be added to an ALB instance | 50 | 100 |
WAF-enabled ALB instance quotas
Quota name | Description | Default value | Maximum value | Adjustable |
alb_quota_loadbalancer_certificates_num_standardwithwaf_edition | Maximum number of additional certificates that can be added to an ALB instance (excluding default certificates) | 25 | 300 | |
alb_quota_loadbalancer_rules_num_standardwithwaf_edition | Maximum number of forwarding rules that can be configured for an ALB instance (excluding default forwarding rules) | 100 | 200 | |
alb_quota_loadbalancer_servers_num_standardwithwaf_edition | Maximum number of backend servers that can be added to an ALB instance | 1,000 | 1,500 | |
alb_quota_loadbalancer_listeners_num_standardwithwaf_edition | Maximum number of listeners that can be added to an ALB instance | 50 | 100 |
Listener quotas
Quota name | Description | Default value | Maximum value | Adjustable |
alb_quota_max_request_timeout | Maximum timeout period for a connection request when a listener is created | 180 seconds | 600 seconds | |
alb_quota_max_idle_timeout | Maximum timeout period for an idle connection when a listener is created | Maximum value: 60 seconds. | 600 seconds |
Server group quotas
Quota name | Description | Default value | Maximum value | Adjustable |
alb_quota_server_added_num | Maximum number of ALB server groups in which a backend server (IP address) can be specified | 200 | 300 | |
alb_quota_servergroup_attached_num | Maximum number of times that an ALB server group can be associated with listeners and forwarding rules | 50 | 100 |
API rate limits
The following table describes the API rate limits of ALB.
API | Version | Default value | Description | Adjustable |
AddEntriesToAcl | 2020/6/16 | 200/60(s) | Maximum number of times that each Alibaba Cloud account can call the AddEntriesToAcl operation per minute | No |
AddServersToServerGroup | 2020/6/16 | 200/60(s) | Maximum number of times that each Alibaba Cloud account can call the AddServersToServerGroup operation per minute | No |
AttachCommonBandwidthPackageToLoadBalancer | 2020/6/16 | 200/60(s) | Maximum number of times that each Alibaba Cloud account can call the AttachCommonBandwidthPackageToLoadBalancer operation per minute | No |
CreateAcl | 2020/6/16 | 200/60(s) | Maximum number of times that each Alibaba Cloud account can call the CreateAcl operation per minute | No |
CreateListener | 2020/6/16 | 200/60(s) | Maximum number of times that each Alibaba Cloud account can call the CreateListener operation per minute | No |
CreateLoadBalancer | 2020/6/16 | 200/60(s) | Maximum number of times that each Alibaba Cloud account can call the CreateLoadBalancer operation per minute | No |
CreateSecurityPolicy | 2020/6/16 | 200/60(s) | Maximum number of times that each Alibaba Cloud account can call the CreateSecurityPolicy operation per minute | No |
CreateServerGroup | 2020/6/16 | 200/60(s) | Maximum number of times that each Alibaba Cloud account can call the CreateServerGroup operation per minute | No |
DeleteListener | 2020/6/16 | 200/60(s) | Maximum number of times that each Alibaba Cloud account can call the DeleteListener operation per minute | No |
DeleteLoadBalancer | 2020/6/16 | 200/60(s) | Maximum number of times that each Alibaba Cloud account can call the DeleteLoadBalancer operation per minute | No |
DeleteSecurityPolicy | 2020/6/16 | 200/60(s) | Maximum number of times that each Alibaba Cloud account can call the DeleteSecurityPolicy operation per minute | No |
DeleteServerGroup | 2020/6/16 | 200/60(s) | Maximum number of times that each Alibaba Cloud account can call the DeleteServerGroup operation per minute | No |
DescribeRegions | 2020/6/16 | 20/1(s) | Maximum number of times that each Alibaba Cloud account can call the DescribeRegions operation per minute. | No |
DescribeZones | 2020/6/16 | 20/1(s) | Maximum number of times that each Alibaba Cloud account can call the DescribeZones operation per second | No |
DetachCommonBandwidthPackageFromLoadBalancer | 2020/6/16 | 200/60(s) | Maximum number of times that each Alibaba Cloud account can call the DetachCommonBandwidthPackageFromLoadBalancer operation per minute | No |
DisableLoadBalancerIpv6Internet | 2020/6/16 | 200/60(s) | Maximum number of times that each Alibaba Cloud account can call the DisableLoadBalancerIpv6Internet operation per minute | No |
EnableLoadBalancerIpv6Internet | 2020/6/16 | 200/60(s) | Maximum number of times that each Alibaba Cloud account can call the EnableLoadBalancerIpv6Internet operation per minute | No |
GetListenerAttribute | 2020/6/16 | 20/1(s) | Maximum number of times that each Alibaba Cloud account can call the GetListenerAttribute operation per second | No |
GetListenerHealthStatus | 2020/6/16 | 20/1(s) | Maximum number of times that each Alibaba Cloud account can call the GetListenerHealthStatus operation per minute. | No |
GetLoadBalancerAttribute | 2020/6/16 | 20/1(s) | Maximum number of times that each Alibaba Cloud account can call the GetLoadBalancerAttribute operation per second | No |
Privileges
The default value of a privilege is 0, indicating the corresponding advanced feature is unavailable by default. You must obtain the privilege from Alibaba Cloud before you can use the feature. The following table describes the privileges of ALB.
Quota ID | Description | Link |
slb_user_visible_gray_label/clone_clb | Migration from CLB to ALB by using a wizard. | |
slb_user_visible_gray_label/ip_target_cidr_not_limited | CIDR blocks are not limited for server groups of the IP type. |