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Elastic Compute Service:DeleteNetworkInterface

Last Updated:May 14, 2024

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.


OpenAPI Explorer automatically calculates the signature value. For your convenience, we recommend that you call this operation in OpenAPI Explorer.

Authorization information

There is currently no authorization information disclosed in the API.

Request parameters


The region ID of the ENI. You can call the DescribeRegions operation to query the most recent region list.


The ID of the ENI.


Response parameters


The request ID.



Sample success responses


  "RequestId": "F3CD6886-D8D0-4FEE-B93E-1B73239673DE"

Error codes

HTTP status codeError codeError messageDescription
400MissingParameter%sA parameter is not specified.
400UnsupportedParameter%sThe parameter is not supported.
400InvalidParameter%sThe specified parameter is invalid.
400InvalidInstanceID.Malformed%sThe specified InstanceId parameter is invalid.
400Forbidden.RegionId%sThe service is unavailable in the current region.
400InvalidParams.EniId%sThe specified EniId parameter is invalid.
403InvalidUserType.NotSupported%sYour account does not support this operation.
403Abs.InvalidAccount.NotFound%sYour Alibaba Cloud account does not exist or your AccessKey pair has expired.
403Forbidden.NotSupportRAM%sRAM users are not authorized to perform this operation.
403Forbidden.SubUser%sYou are not authorized to manage this resource. Contact the owner of the Alibaba Cloud account for authorization.
403MaxEniCountExceeded%sThe maximum number of ENIs that can be managed has been reached.
403EniPerInstanceLimitExceeded%sThe maximum number of ENIs that can be attached to the specified instance has been reached.
403InvalidOperation.AvailabilityZoneMismatch%sThe operation is invalid.
403InvalidOperation.VpcMismatch%sThe operation is invalid. Check whether the VPC in the operation corresponds to other parameters.
403InvalidSecurityGroupId.NotVpc%sThe specified SecurityGroupId parameter is invalid and the network type of the security group is not VPC.
403InvalidEniId.NotFound%sThe specified ENI ID does not exist.
403InvalidOperation.EniServiceManaged%sThe operation is invalid.
404InvalidEcsId.NotFound%sThe specified instance ID does not exist.
404InvalidVSwitchId.NotFound%sThe specified vSwitch does not exist.
404InvalidSecurityGroupId.NotFound%sThe specified security group ID does not exist.

For a list of error codes, visit the Service error codes.

Change history

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