The use of Tencent Cloud CLB has certain restrictions, and different types of CLB instances have their own use limits. For more information on CLB instance types, please see Instance Types.
| Instance Type | Resource | Default Restriction |
|---|---|---|
| General restrictions for all instances | Number of public network instances can be created under one account in a single region | 100 |
| Number of private network instances can be created under one account in a single region | 100 | |
| Number of listeners can be added to an instance | 50 | |
| Ports that can be selected by a listener in an instance | An integer between 1 - 65535 | |
| CLB (formerly "application CLB") |
Number of domain name and URL forwarding rules can be configured for an HTTP/HTTPS listener in a CLB instance | 50 |
| Number of servers can be bound to a forwarding rule in a CLB instance | 100 | |
| Number of backend ports that can correspond to a frontend port of a CLB instance | Multiple ports | |
| Classic CLB | Number of servers can be bound to a listener in a classic CLB instance | 100 |
| Number of backend ports that can correspond to a frontend port of a classic CLB instance | 1 port |
A CLB instance will not unbind itself from the CVM instance. After a CVM instance becomes isolated (pay-as-you-go CVM instance has been in arrears for more than 2 hours), it will not unbind itself from the CLB instance either.
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