Call the DeleteNetworkInterface API to delete an elastic network interface - Elastic Compute Service - Alibaba Cloud - Elastic Compute Service

Asynchronously deletes an Elastic Network Interface (ENI).

Operation description

When you call this operation, take note of the following items:

The ENI must be in the Available state.
If the ENI is attached to an ECS instance, you must first detach it from the instance (DetachNetworkInterface) before you can delete the ENI.
After the ENI is deleted:
- All private addresses (including the primary private IP address and secondary private IP addresses) of the ENI are automatically released.
- The deleted ENI is removed from all associated security groups.
This is an asynchronous operation. After you call the operation successfully, you can check the ENI status or listen for network interface controller (NIC) operation events to determine the result. The ENI state machine is shown in the following figure:
- The Deleting state indicates that the delete request was sent successfully and the ENI is being deleted.
- If the ENI cannot be found, the ENI is deleted.
- If the ENI remains in the Deleting state for an extended period of time, the deletion failed. In this case, you can send a new delete request for the ENI.

For details about sample code, see Delete an ENI.

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Test

RAM authorization

The table below describes the authorization required to call this API. You can define it in a Resource Access Management (RAM) policy. The table's columns are detailed below:

Action: The actions can be used in the Action element of RAM permission policy statements to grant permissions to perform the operation.
API: The API that you can call to perform the action.
Access level: The predefined level of access granted for each API. Valid values: create, list, get, update, and delete.
Resource type: The type of the resource that supports authorization to perform the action. It indicates if the action supports resource-level permission. The specified resource must be compatible with the action. Otherwise, the policy will be ineffective.
- For APIs with resource-level permissions, required resource types are marked with an asterisk (*). Specify the corresponding Alibaba Cloud Resource Name (ARN) in the Resource element of the policy.
- For APIs without resource-level permissions, it is shown as All Resources. Use an asterisk (*) in the Resource element of the policy.
Condition key: The condition keys defined by the service. The key allows for granular control, applying to either actions alone or actions associated with specific resources. In addition to service-specific condition keys, Alibaba Cloud provides a set of common condition keys applicable across all RAM-supported services.
Dependent action: The dependent actions required to run the action. To complete the action, the RAM user or the RAM role must have the permissions to perform all dependent actions.

Action

Access level

Resource type

Condition key

Dependent action

ecs:DeleteNetworkInterface

delete

*NetworkInterface

acs:ecs:{#regionId}:{#accountId}:eni/{#eniId}

None

Request parameters

Parameter	Type	Required	Description	Example
RegionId	string	Yes	The region ID. You can call DescribeRegions to query the most recent region list.	cn-hangzhou
NetworkInterfaceId	string	Yes	The ID of the ENI.	eni-bp14v2sdd3v8htln****

Response elements

Element	Type	Description	Example
	object
RequestId	string	The request ID.	F3CD6886-D8D0-4FEE-B93E-1B73239673DE

Examples

Success response

JSON format

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

Error codes

HTTP status code	Error code	Error message	Description
400	InvalidOperation.HasSlaveEniBonded	%s	This network card also has a SLAVE network card bound to it.
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	The current status of the instance does not support this operation.
400	InvalidOperation.InvalidEniState	%s	The current status of the ENI does not allow modifying ENI attributes.
400	InvalidOperation.DetachPrimaryEniNotAllowed	%s	Detaching the primary ENI from an instance is not allowed.
400	Forbidden.RegionId	%s	The service is unavailable in the current region.
400	InvalidParams.EniId	%s	The specified EniId parameter is invalid.
500	InternalError	The request processing has failed due to some unknown error, exception or failure.	An internal error has occurred. Try again later.
500	InvalidSecurityGroupId.EniMustHaveSecurityGroup	The specified network card does not have an associated security group.	The specified NIC is not associated with a security group.
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	The number of instances in the security group has reached the maximum limit.
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	The current type of the Elastic Network Interface (ENI) does not support this operation.
403	InvalidEniId.NotFound	%s	The specified ENI ID does not exist.
403	InvalidOperation.EniServiceManaged	%s	The operation is invalid.
403	InvalidOperation.TrunkingIsNotAllowed	The account is not authorized to use trunk ENI or perform trunking operation.	Operation of the trunk card is not allowed. You need to make sure that your account allows you to operate the trunk network card. If you have any questions, please submit the work order.
404	InvalidEcsId.NotFound	%s	The specified instance ID does not exist.
404	InvalidEniId.NotFound	%s
404	InvalidVSwitchId.NotFound	%s	The specified vSwitch does not exist.
404	InvalidSecurityGroupId.NotFound	%s	The specified security group ID does not exist.

See Error Codes for a complete list.

Release notes

See Release Notes for a complete list.