Deletes an elastic network interface (ENI ).


  • The ENI must be in the Available status.
  • If the ENI has been attached to an ECS instance, you must first detach it from the ECS instance (DetachNetworkInterface) and then delete it.
  • After the ENI is removed:
    • The primary private IP address of the ENI (PrimaryIpAddress) is automatically released.
    • The deleted ENI automatically exits from its security group.

Request parameters

Name Type Required Description
Action String Yes The name of this interface. Value: DeleteNetworkInterface.
RegionId String Yes Region ID. For more information about the region ID list, view the region list by calling the DescribeRegions.
NetworkInterfaceId String Yes ENI ID.

Response parameters

All are common response parameters. For more information, see Common parameters.


Request example
&<Common Request Parameters>
Response example

XML format

JSON format
    "RequestId": "04F0F334-1335-436C-A1D7-6C044FExxxxx",

Error codes

Error codes specific to this interface are as follows. For more error codes, visit the API error center.

Error code Error message HTTP status code  Description
Abs.InvalidAccount.NotFound The Account is not found or AK is expired. 403 The specified Alibaba Cloud account does not exist. Alternatively, your AccessKey expires.
Forbidden.NotSupportRAM This action does not support accessed by RAM mode. 403 Ram users are not allowed to perform this operation.
UnsupportedParameter The parameters is unsupported. 400 The specified parameter does not exist. Alternatively, the specified parameter is not supported.
Forbidden.SubUser The specified action is not available for you. 403 Ram users are not allowed to perform this operation.
InvalidOperation.DetachPrimaryEniNotAllowed Detaching primary ENI from ECS instance is not allowed. 400 You cannot detach the primary network interface from an ECS instance.
MissingParameter The input parameter that is mandatory for processing this request is not supplied. 400 You must specify the required parameter.
InvalidOperation.InvalidEniType The operation is not allowed in the current ENI type. 403 The specified action failed due to the type of the ENI.