Deletes an elastic network interface (ENI).
Operation description
Take note of the following items:
-
The ENI to be deleted must be in the Available state.
-
If the ENI to be deleted is attached to an Elastic Compute Service (ECS) instance, you must detach the ENI from the instance before you can delete the ENI. To detach the ENI, you can call the DetachNetworkInterface operation.
-
After an ENI is deleted, the following situations occur:
- All private IP addresses (including primary and secondary private IP addresses) of the ENI are automatically released.
- The ENI is automatically removed from all security groups.
-
The DeleteNetworkInterface operation is an asynchronous operation. After this operation is called to delete an ENI, you can check the status or events of the ENI to determine whether the ENI is deleted. The following figure shows the transitions between the states of the ENI.
- If the ENI is in the Deleting state, the ENI deletion request is sent and the ENI is being deleted.
- If the ENI is not found, the ENI is deleted.
- If the ENI is stuck in the Deleting state, the ENI fails to be deleted. You can re-initiate the request to delete the ENI.
**For information about examples on how to call the DeleteNetworkInterface operation, see **Delete an ENI.
Debugging
Authorization information
Request parameters
| Parameter | Type | Required | Description | Example |
|---|---|---|---|---|
| RegionId | string | Yes | The region ID of the ENI. You can call the DescribeRegions operation to query the most recent region list. | cn-hangzhou |
| NetworkInterfaceId | string | Yes | The ID of the ENI. | eni-bp14v2sdd3v8htln**** |
Response parameters
Examples
Sample success responses
JSONformat
{
"RequestId": "F3CD6886-D8D0-4FEE-B93E-1B73239673DE"
}Error codes
| HTTP status code | Error code | Error message | Description |
|---|---|---|---|
| 400 | InvalidOperation.HasSlaveEniBonded | %s | - |
| 400 | MissingParameter | %s | A parameter is not specified. |
| 400 | UnsupportedParameter | %s | The parameter is not supported. |
| 400 | InvalidParameter | %s | The specified parameter is invalid. |
| 400 | InvalidInstanceID.Malformed | %s | The specified InstanceId parameter is invalid. |
| 400 | InvalidOperation.InvalidEcsState | %s | - |
| 400 | InvalidOperation.InvalidEniState | %s | - |
| 400 | InvalidOperation.DetachPrimaryEniNotAllowed | %s | - |
| 400 | Forbidden.RegionId | %s | The service is unavailable in the current region. |
| 400 | InvalidParams.EniId | %s | The specified EniId parameter is invalid. |
| 403 | InvalidUserType.NotSupported | %s | Your account does not support this operation. |
| 403 | Abs.InvalidAccount.NotFound | %s | Your Alibaba Cloud account does not exist or your AccessKey pair has expired. |
| 403 | Forbidden.NotSupportRAM | %s | RAM users are not authorized to perform this operation. |
| 403 | Forbidden.SubUser | %s | You are not authorized to manage this resource. Contact the owner of the Alibaba Cloud account for authorization. |
| 403 | MaxEniCountExceeded | %s | The maximum number of ENIs that can be managed has been reached. |
| 403 | EniPerInstanceLimitExceeded | %s | The maximum number of ENIs that can be attached to the specified instance has been reached. |
| 403 | InvalidOperation.AvailabilityZoneMismatch | %s | The operation is invalid. |
| 403 | InvalidOperation.VpcMismatch | %s | The operation is invalid. Check whether the VPC in the operation corresponds to other parameters. |
| 403 | SecurityGroupInstanceLimitExceed | %s | - |
| 403 | InvalidSecurityGroupId.NotVpc | %s | The specified SecurityGroupId parameter is invalid and the network type of the security group is not VPC. |
| 403 | InvalidOperation.InvalidEniType | %s | - |
| 403 | InvalidEniId.NotFound | %s | The specified ENI ID does not exist. |
| 403 | InvalidOperation.EniServiceManaged | %s | The operation is invalid. |
| 404 | InvalidEcsId.NotFound | %s | The specified instance ID does not exist. |
| 404 | InvalidVSwitchId.NotFound | %s | The specified vSwitch does not exist. |
| 404 | InvalidSecurityGroupId.NotFound | %s | The specified security group ID does not exist. |
For a list of error codes, visit the Service error codes.