Modifies the billing method of an Internet-facing Classic Load Balancer (CLB) instance.

  • Change the bandwidth limit of a pay-by-bandwidth CLB instance. The new bandwidth limit immediately takes effect.
  • After you change the billing method of a CLB instance from pay-by-data-transfer to pay-by-bandwidth, the new billing method takes effect at 00:00 on the following day.
  • After you change the billing method of a CLB instance from pay-by-bandwidth to pay-by-data-transfer, the new billing method takes effect at 00:00 on the following day.


OpenAPI Explorer automatically calculates the signature value. For your convenience, we recommend that you call this operation in OpenAPI Explorer. OpenAPI Explorer dynamically generates the sample code of the operation for different SDKs.

Request parameters

Parameter Type Required Example Description
Action String Yes ModifyLoadBalancerInternetSpec

The operation that you want to perform.

Set the value to ModifyLoadBalancerInternetSpec.

LoadBalancerId String Yes lb-bp1b6c719dfa08ex******

The ID of the CLB instance.

RegionId String Yes cn-hangzhou

The ID of the region where the CLB instance is deployed.

You can query the region ID from the Regions and zones list or by calling the DescribeRegions operation.

InternetChargeType String No paybytraffic

The metering method of the Internet-facing CLB instance. Valid values:

  • paybytraffic: pay-by-data-transfer.
Note If you do not set this parameter, the billing method of the CLB instance remains unchanged.
Bandwidth Integer No 10

The bandwidth limit of the Internet-facing CLB instance that is billed on a pay-by-bandwidth basis.

Valid values: 1 to 5000. Unit: Mbit/s. The maximum bandwidth varies by region.

Note You do not need to set this parameter for pay-by-data-transfer CLB instances. The value of InternetChargeType is paybytraffic.
AutoPay Boolean No false

Specifies whether to automatically pay for the subscription Internet-facing CLB instance.

Valid values: true and false (default).

Response parameters

Parameter Type Example Description
OrderId Long 201429619788910

The order ID of the subscription CLB instance.

RequestId String CEF72CEB-54B6-4AE8-B225-F876FF7BA984

The ID of the request.


Sample requests

&<Common request parameters>

Successful response examples

XML format


JSON format

    "RequestId": "E4DD2D80-8DC0-4A2E-BFBA-BE983A31AFED"

Error codes

HttpCode Error code Error message Description
400 Operation.NotAllowed Operation Denied. Unfinished purchase exists. The error message returned because a pending order exists.

For a list of error codes, visit the API Error Center.