Restrictions

Last updated: 2020-03-09 14:59:22

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 TypeResourceDefault Restriction
General restrictions for all instances Number of public network instances can be created under one account in a single region100
Number of private network instances can be created under one account in a single region100
Number of listeners can be added to an instance50
Ports that can be selected by a listener in an instanceAn 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 instance50
Number of servers can be bound to a forwarding rule in a CLB instance100
Number of backend ports that can correspond to a frontend port of a CLB instanceMultiple ports
Classic CLB Number of servers can be bound to a listener in a classic CLB instance100
Number of backend ports that can correspond to a frontend port of a classic CLB instance1 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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