Attach an ENI to ENS via AttachNetworkInterface API for Multi-NIC Networking - ENS

Operation description

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

The ENI must be in the Available state.
An ENI can be attached to only one instance that is the same zone and the same Virtual Private Cloud (VPC).
The instance must be in the Stopped state.
A maximum of 10 ENIs can be attached to an instance.
This operation is an asynchronous operation. After you To attach an ENI, you can view the status of the ENI to check whether the ENI is attached.

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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

ens:AttachNetworkInterface

update

*All Resource

*

None

Request parameters

Parameter	Type	Required	Description	Example
InstanceId	string	Yes	The ID of the instance	i-5p67acfmxazb4p****
NetworkInterfaceId	string	Yes	The ID of the ENI.	eni-58z57orgmt6d1****

Response elements

Element	Type	Description	Example
	object	Schema of Response
RequestId	string	The request ID.	473469C7-AA6F-4DC5-B3DB-A3DC0DE3C83E

Examples

Success response

JSON format

{
  "RequestId": "473469C7-AA6F-4DC5-B3DB-A3DC0DE3C83E"
}

Error codes

HTTP status code	Error code	Error message
400	ens.interface.error	An error occurred while call the API.
400	InvalidEniId.NotFound	The specified NetworkInterfaceId does not exist.
400	InvalidParameter.EniServiceManaged	The eni is managed by service.
400	InvalidOperation.InvalidEniStatus	Current eni status does not support this operation.
400	InstanceNotFound	The input parameter instancdId that is not found.
400	InvalidOperation.InvalidEnsStatus	Current instance status does not support this operation.
400	InvalidOperation.InstanceNotSupport	The specified instance does not support this operation.
400	InvalidOperation.NetworkMismatch	Specified eni and instance are not in the same network.
400	EniPerInstanceLimitExceeded	EniPerInstanceLimitExceeded.
400	InvalidOperation.InvalidEniType	The type of eni does not support this operation.
400	NoPermission	Permission denied.
400	InvalidParameter.%s	The specified field %s invalid. Please check it again.

See Error Codes for a complete list.

Release notes

See Release Notes for a complete list.