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 quota items and their default values of Network Load Balancer (NLB), as well as whether the quotas are adjustable.
Alibaba Cloud provides the following quota types based on accounts or regions:
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 queries per second (QPS) limits.
Privileges: the permissions to use advanced features. Privileges are granted by Alibaba Cloud to an account.
NLB is subject to general quotas and API rate limits. You can apply for increases on some of the quotas. You can view and manage quotas in Alibaba Cloud Quota Center or on the Quota Management page in the Server Load Balancer (SLB) console. For more information about how to manage the quotas of NLB, see Manage NLB quotas.
General quotas
The following table describes the general quotas of NLB.
This topic provides the default quota values for the service, and the actual default quota values may be different. The values in the Alibaba Cloud service console are the actual default quotas applied to your Alibaba Cloud account.
Instance quotas
Name | Description | Default value | Adjustable |
nlb_quota_loadbalancers_num | Maximum number of NLB instances that each Alibaba Cloud account can have in a region | 60 | |
nlb_quota_loadbalancer_eci_servers_num | Maximum number of elastic container instances that can be specified as backend servers for each NLB instance | 1,600 | No |
nlb_quota_loadbalancer_noeci_servers_num | Maximum number of Elastic Compute Service (ECS) instances, elastic network interfaces (ENIs), or IP addresses that can be specified as backend servers for each NLB instance | 400 | |
nlb_quota_loadbalancer_listeners_num | Maximum number of listeners that can be added to each NLB instance | 50 | |
nlb_quota_loadbalancer_certificates_num | Maximum number of additional certificates that can be added to each NLB instance (excluding the default certificate) | 25 |
Server group quotas
Name | Description | Default value | Adjustable |
nlb_quota_servergroups_num | Maximum number of NLB server groups that each Alibaba Cloud account can have in a region | 3,000 | No |
nlb_quota_servergroup_eci_servers_num | Maximum number of elastic container instances that can be added to each server group | 1,600 | No |
nlb_quota_servergroup_noeci_servers_num | Maximum number of ECS instances, ENIs, or IP addresses that can be added to each server group | 400 | |
nlb_quota_server_added_num | Maximum number of times that a backend server (including a backend server of the IP type) can be added to a server group | 200 | |
nlb_quota_servergroup_attached_num | Maximum number of times that each NLB server group can be associated with a listener | 50 |
Security policy quotas
Name | Description | Default value | Adjustable |
nlb_quota_securitypolicies_num | Maximum number of custom security policies that each Alibaba Cloud account can have in a region | 50 | No |
API rate limits
The following table describes the API rate limits of NLB.
API | Version | Default value | Description | Adjustable |
AddServersToServerGroup | 2022/4/30 | 200/60(s) | Maximum number of times that each Alibaba Cloud account can call the AddServersToServerGroup operation per minute | No |
AttachCommonBandwidthPackageToLoadBalancer | 2022/4/30 | 200/60(s) | Maximum number of times that each Alibaba Cloud account can call the AttachCommonBandwidthPackageToLoadBalancer operation per minute | No |
CreateListener | 2022/4/30 | 200/60(s) | Maximum number of times that each Alibaba Cloud account can call the CreateListener operation per minute | No |
CreateLoadBalancer | 2022/4/30 | 200/60(s) | Maximum number of times that each Alibaba Cloud account can call the CreateLoadBalancer operation per minute | No |
CreateSecurityPolicy | 2022/4/30 | 200/60(s) | Maximum number of times that each Alibaba Cloud account can call the CreateSecurityPolicy operation per minute | No |
CreateServerGroup | 2022/4/30 | 200/60(s) | Maximum number of times that each Alibaba Cloud account can call the CreateServerGroup operation per minute | No |
DeleteListener | 2022/4/30 | 200/60(s) | Maximum number of times that each Alibaba Cloud account can call the DeleteListener operation per minute | No |
DeleteLoadBalancer | 2022/4/30 | 200/60(s) | Maximum number of times that each Alibaba Cloud account can call the DeleteLoadBalancer operation per minute | No |
DeleteSecurityPolicy | 2022/4/30 | 200/60(s) | Maximum number of times that each Alibaba Cloud account can call the DeleteSecurityPolicy operation per minute | No |
DeleteServerGroup | 2022/4/30 | 200/60(s) | Maximum number of times that each Alibaba Cloud account can call the DeleteServerGroup operation per minute | No |
DescribeRegions | 2022/4/30 | 20/1(s) | Maximum number of times that each Alibaba Cloud account can call the DescribeRegions operation per second | No |
DescribeZones | 2022/4/30 | 20/1(s) | Maximum number of times that each Alibaba Cloud account can call the DescribeZones operation per second | No |
DetachCommonBandwidthPackageFromLoadBalancer | 2022/4/30 | 200/60(s) | Maximum number of times that each Alibaba Cloud account can call the DetachCommonBandwidthPackageFromLoadBalancer operation per minute | No |
DisableLoadBalancerIpv6Internet | 2022/4/30 | 200/60(s) | Maximum number of times that each Alibaba Cloud account can call the DisableLoadBalancerIpv6Internet operation per minute | No |
EnableLoadBalancerIpv6Internet | 2022/4/30 | 200/60(s) | Maximum number of times that each Alibaba Cloud account can call the EnableLoadBalancerIpv6Internet operation per minute | No |
GetJobStatus | 2022/4/30 | 20/1(s) | Maximum number of times that each Alibaba Cloud account can call the GetJobStatus operation per second | No |
GetListenerAttribute | 2022/4/30 | 20/1(s) | Maximum number of times that each Alibaba Cloud account can call the GetListenerAttribute operation per second | No |
GetListenerHealthStatus | 2022/4/30 | 10/1(s) | Maximum number of times that each Alibaba Cloud account can call the GetListenerHealthStatus operation per second | No |
GetLoadBalancerAttribute | 2022/4/30 | 20/1(s) | Maximum number of times that each Alibaba Cloud account can call the GetLoadBalancerAttribute operation per second | No |
ListListenerCertificates | 2022/4/30 | 20/1(s) | Maximum number of times that each Alibaba Cloud account can call the ListListenerCertificates operation per second | No |
ListListeners | 2022/4/30 | 20/1(s) | Maximum number of times that each Alibaba Cloud account can call the ListListeners operation per second | No |
ListLoadBalancers | 2022/4/30 | 20/1(s) | Maximum number of times that each Alibaba Cloud account can call the ListLoadBalancers operation per second | No |
ListSecurityPolicy | 2022/4/30 | 20/1(s) | Maximum number of times that each Alibaba Cloud account can call the ListSecurityPolicy operation per second | No |
ListServerGroupServers | 2022/4/30 | 20/1(s) | Maximum number of times that each Alibaba Cloud account can call the ListServerGroupServers operation per second | No |
ListServerGroups | 2022/4/30 | 20/1(s) | Maximum number of times that each Alibaba Cloud account can call the ListServerGroups operation per second | No |
ListSystemSecurityPolicy | 2022/4/30 | 20/1(s) | Maximum number of times that each Alibaba Cloud account can call the ListSystemSecurityPolicy operation per second | No |
ListTagResources | 2022/4/30 | 20/1(s) | Maximum number of times that each Alibaba Cloud account can call the ListTagResources operation per second | No |
RemoveServersFromServerGroup | 2022/4/30 | 200/60(s) | Maximum number of times that each Alibaba Cloud account can call the RemoveServersFromServerGroup operation per minute | No |
StartListener | 2022/4/30 | 200/60(s) | Maximum number of times that each Alibaba Cloud account can call the StartListener operation per minute | No |
StopListener | 2022/4/30 | 200/60(s) | Maximum number of times that each Alibaba Cloud account can call the StopListener operation per minute | No |
TagResources | 2022/4/30 | 200/60(s) | Maximum number of times that each Alibaba Cloud account can call the TagResources operation per minute | No |
UntagResources | 2022/4/30 | 200/60(s) | Maximum number of times that each Alibaba Cloud account can call the UntagResources operation per minute | No |
UpdateListenerAttribute | 2022/4/30 | 200/60(s) | Maximum number of times that each Alibaba Cloud account can call the UpdateListenerAttribute operation per minute | No |
UpdateLoadBalancerAddressTypeConfig | 2022/4/30 | 200/60(s) | Maximum number of times that each Alibaba Cloud account can call the UpdateLoadBalancerAddressTypeConfig operation per minute | No |
UpdateLoadBalancerAttribute | 2022/4/30 | 200/60(s) | Maximum number of times that each Alibaba Cloud account can call the UpdateLoadBalancerAttribute operation per minute | No |
UpdateLoadBalancerZones | 2022/4/30 | 200/60(s) | Maximum number of times that each Alibaba Cloud account can call the UpdateLoadBalancerZones operation per minute | No |
UpdateSecurityPolicyAttribute | 2022/4/30 | 200/60(s) | Maximum number of times that each Alibaba Cloud account can call the UpdateSecurityPolicyAttribute operation per minute | No |
UpdateServerGroupAttribute | 2022/4/30 | 200/60(s) | Maximum number of times that each Alibaba Cloud account can call the UpdateServerGroupAttribute operation per minute | No |
UpdateServerGroupServersAttribute | 2022/4/30 | 200/60(s) | Maximum number of times that each Alibaba Cloud account can call the UpdateServerGroupServersAttribute operation per minute | No |