1. API Description

The API is used to modify the public bandwidth of a virtual machine instance.


  • You can only perform this operation on instances whose status is RUNNING.

  • If the internetChargeType of your instance is ByBandwidth

    • For a PREPAID instance:

      • Upgrade (target > current) operation will deduct the amount required for this instance purchase. If the balance is insufficient, the request will fail and take effect immediately.

      • Downgrade (target < current) operation will generate an order for the next billing cycle and will take effect by then.

    • For a POSTPAID instance, the change takes immediate effect.

  • If the internetChargeType of your instance is not ByBandwidth, the bandwidth change takes immediate effect.

  • This API is an async API. Use DescribeInstanceInternetStatus to query bandwidth status of an instance.

2. Input Parameters

The following request parameter list only provides API request parameters.

3. Output Parameters

4. Code Example

Upgrade instance bandwidth.

POST /api/v2/vm HTTP/1.1
Content-Type: application/json
X-ZC-Action: ModifyInstanceBandwidth
<Common Request Params>

  "instanceId": "instanceId",
  "internetMaxBandwidthOut": 100

  "requestId": "T05992D0C-7E8B-4047-B0C0-780F2CD549D3",
  "response": {  
    "requestId": "T05992D0C-7E8B-4047-B0C0-780F2CD549D3",
    "orderNumber": "xxxx"

5. Developer Resources

Zenlayer Cloud API 2.0 integrates SDKs to make it easier for you to call APIs. More programming languages will be supported.

6. Error Codes

The following only lists the error codes related to the API business logic. For other error codes, see Common Error Codes.​

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