This topic describes the quotas of Classic Load Balancer (CLB) resources.
Basic settings
Item | Quota | Quota increase |
|---|---|---|
Limits on CLB instances | Go to the Quota Management page to increase the quota. For more information, see Manage service quotas. | |
Maximum number of CLB instances that can be created within an Alibaba Cloud account | 30 | |
Maximum number of times that an ECS instance can be associated with a CLB instance | 50 | |
Maximum number of backend servers that can be added to a CLB instance | 200 | |
Maximum number of listeners that can be configured for a CLB instance | 50 | |
Maximum number of domain name-based and URL-based forwarding rules that can be added to an HTTP or HTTPS listener | 40 | |
Maximum number of additional certificates that can be created for an HTTPS listener | 3 | |
Range of frontend or backend ports that can be used by a CLB listener (Alibaba Cloud) | 1~65535 | |
Range of frontend and backend ports that can be used by a CLB listener (Alibaba Finance Cloud) |
| |
Limits on certificates | ||
Maximum number of server certificates that can be uploaded in a region | 100 | |
Maximum number of client CA certificates that can be uploaded in a region | 100 | |
Limits on access control lists (ACLs) | ||
Maximum number of ACLs that can be created in a region | 50 | |
Maximum number of IP addresses that can be added to an ACL | 300 | |
Maximum number of IP addresses that can be added to an ACL in an API operation | 50 | |
Maximum number of times that an ACL can be associated with listeners | 50 | |
Public key algorithms supported by CLB |
| N/A |