tencent cloud



最后更新时间:2022-08-24 17:36:35

1. API Description

Domain name for API request: vpc.tencentcloudapi.com.

This API is used to create an ENI and bind it to a CVM.

  • You can specify private IP addresses and a primary IP when creating an ENI. The specified private IP must be idle and in the same subnet as the ENI.
  • When creating an ENI, you can specify the number of private IPs that you want to apply for. The system will randomly generate private IP addresses.
  • The number of IPs bound with an ENI is limited. For more information, see ENI Use Limits.
  • You can bind an existing security group when creating an ENI.
  • You can bind a tag when creating an ENI. The tag list in the response indicates the tags that have been successfully added.


    This API is async. You can call the DescribeVpcTaskResult API to query the task result. When the task is completed, you can continue other tasks.

A maximum of 20 requests can be initiated per second for this API.

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2. Input Parameters

The following request parameter list only provides API request parameters and some common parameters. For the complete common parameter list, see Common Request Parameters.

Parameter Name Required Type Description
Action Yes String Common Params. The value used for this API: CreateAndAttachNetworkInterface.
Version Yes String Common Params. The value used for this API: 2017-03-12.
Region Yes String Common Params. For more information, please see the list of regions supported by the product.
VpcId Yes String The ID of the VPC instance. You can obtain the parameter value from the VpcId field in the returned result of the DescribeVpcs API.
NetworkInterfaceName Yes String The name of the ENI. The maximum length is 60 bytes.
SubnetId Yes String The subnet instance ID of the ENI, such as 'subnet-0ap8nwca'.
InstanceId Yes String CVM instance ID.
PrivateIpAddresses.N No Array of PrivateIpAddressSpecification The information of the specified private IPs. You can specify a maximum of 10 IPs each time.
SecondaryPrivateIpAddressCount No Integer The number of private IP addresses you can apply for. The total number of private IP addresses cannot exceed the quota.
SecurityGroupIds.N No Array of String The security group to be bound with, such as ['sg-1dd51d'].
NetworkInterfaceDescription No String The ENI description. You can enter any information within 60 characters.
Tags.N No Array of Tag Bound tags, such as [{"Key": "city", "Value": "shanghai"}].
AttachType No Integer ENI mounting type. Valid values: 0 (standard); 1 (extension); default value: 0

3. Output Parameters

Parameter Name Type Description
NetworkInterface NetworkInterface The ENI instance.
RequestId String The unique request ID, which is returned for each request. RequestId is required for locating a problem.

4. Example

Example1 Creating an ENI and binding it to a CVM

Input Example

&<Common request parameters>

Output Example

    "Response": {
        "NetworkInterface": {
            "NetworkInterfaceId": "eni-irk5qhhl",
            "VpcId": "vpc-0akbol5v",
            "SubnetId": "subnet-76r802pg",
            "NetworkInterfaceName": "TestNIC",
            "NetworkInterfaceDescription": "TestDesc",
            "MacAddress": "20:90:6F:62:33:E2",
            "Business": "TKE",
            "CdcId": "",
            "EniType": 1,
            "AttachType": 1,
            "PrivateIpAddressSet": [
                    "PrivateIpAddress": "",
                    "Primary": true,
                    "AddressId": "",
                    "PublicIpAddress": "",
                    "Description": "",
                    "IsWanIpBlocked": false,
                    "State": "PENDING"
            "Attachment": {
                "InstanceId": "ins-12345678"
            "GroupSet": [],
            "Primary": false,
            "State": "PENDING",
            "Zone": "",
            "CreatedTime": "",
            "Ipv6AddressSet": [],
            "TagSet": [
                    "Key": "city",
                    "Value": "shanghai"
        "RequestId": "5cf1a813-d4f8-4e0c-8f90-c155a84a3ea1"

5. Developer Resources


TencentCloud API 3.0 integrates SDKs that support various programming languages to make it easier for you to call APIs.

Command Line Interface

6. Error Code

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

Error Code Description
InvalidParameterValue Incorrect parameter value.
InvalidParameterValue.Malformed Invalid input parameter format.
InvalidParameterValue.Range The parameter value is not in the specified range.
InvalidParameterValue.Reserved The parameter value is retained by the system.
InvalidParameterValue.TooLong Invalid parameter value. The parameter value is too long.
LimitExceeded Quota limit is reached.
ResourceInUse The resource is occupied.
ResourceInsufficient Insufficient resources.
ResourceNotFound The resource does not exist.
UnsupportedOperation Unsupported operation.
UnsupportedOperation.InvalidState Invalid resource status.
UnsupportedOperation.UnsupportedInstanceFamily The specified instance type does not support ENIs.




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