You can call this operation to detach a Elastic Network Interface (ENI) from an ECS instance.

Description

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

  • Primary ENIs are not allowed to detach from their instances.
  • The ENI must be in the Unbinding (Detaching) or Bound (InUse) state.
  • The instance must be in the Running (Running) or Stopped (Stopped) state.

Debugging

OpenAPI Explorer automatically calculates the signature value. For your convenience, we recommend that you call this operation in OpenAPI Explorer. OpenAPI Explorer dynamically generates the sample code of the operation for different SDKs.

Request Parameters

Parameter Type Required Example Description
Action String Yes DetachNetworkInterface

The operation that you want to perform. Set the value to DetachNetworkInterface.
InstanceId String Yes i-bp67acfmxazb4p****

The ID of the instance.
NetworkInterfaceId String Yes eni-bp67acfmxazb4p****

The ID of the ENI.
RegionId String Yes cn-hangzhou

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

Response parameters

Parameter Type Example Description
RequestId String 473469C7-AA6F-4DC5-B3DB-A3DC0DE3C83E

The ID of the request.

Examples

Sample requests

https://ecs.aliyuncs.com/?Action=DetachNetworkInterface
&InstanceId=i-bp67acfmxazb4p****
&NetworkInterfaceId=eni-bp67acfmxazb4p****
&RegionId=cn-hangzhou
&<Common request parameters>

Sample success responses

XML format 

<DetachNetworkInterfaceResponse>
      <RequestId>473469C7-AA6F-4DC5-B3DB-A3DC0DE3C83E</RequestId>
</DetachNetworkInterfaceResponse>

JSON format 

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

Error codes

HTTP status code Error code Error message Description
403 InvalidUserType.NotSupported %s The error message returned because the specified account does not support this operation.
403 Abs.InvalidAccount.NotFound %s The error message returned because your Alibaba Cloud account does not exist or your AccessKey pair has expired.
400 MissingParameter %s The error message returned because a required parameter is not specified.
403 Forbidden.NotSupportRAM %s The error message returned because RAM users are not allowed to perform this operation.
400 UnsupportedParameter %s The error message returned because the specified parameter is not supported.
403 Forbidden.SubUser %s The error message returned because your account has no permission to manage this resource. Apply for permissions to the Alibaba Cloud account.
400 InvalidParameter %s The error message returned because the specified parameter is invalid.
400 InvalidInstanceID.Malformed %s The error message returned because the specified InstanceId parameter is invalid.
400 InvalidOperation.InvalidRegion %s The error message returned because the specified RegionId parameter is invalid.
400 InvalidOperation.InvalidEcsState %s The error message returned because the operation is not supported while the instance is in the current state.
400 InvalidOperation.InvalidEniState %s The error message returned because the operation is not supported while the ENI is in the current state.
400 InvalidOperation.DetachPrimaryEniNotAllowed %s The error message returned because the primary ENI cannot be detached from the instance.
404 InvalidEcsId.NotFound %s The error message returned because the specified instance ID does not exist.
404 InvalidEniId.NotFound %s The error message returned because the specified ENI ID does not exist.
404 InvalidVSwitchId.NotFound %s The error message returned because the specified VSwitch ID does not exist.
404 InvalidSecurityGroupId.NotFound %s The error message returned because the specified security group ID does not exist.
403 MaxEniCountExceeded %s The error message returned because the maximum number of ENIs that can be managed has been reached.
403 EniPerInstanceLimitExceeded %s The error message returned because the maximum number of ENIs that can be attached to an instance has been reached.
403 InvalidOperation.AvailabilityZoneMismatch %s The error message returned because this operation is invalid.
403 InvalidOperation.VpcMismatch %s The error message returned because your operation is invalid. Check whether the VPC in the operation matches other parameters.
403 SecurityGroupInstanceLimitExceed %s The error message returned because the maximum number of instances in the specified security group has been reached.
403 InvalidSecurityGroupId.NotVpc %s The error message returned because the specified SecurityGroupId parameter is invalid and the network type of the security group is not VPC.
403 InvalidOperation.InvalidEniType %s The error message returned because the current ENI type does not support the operation.
400 Forbidden.RegionId %s The error message returned because the service is not available in the current region.
400 InvalidParams.EniId %s The error message returned because the specified EniId parameter is invalid.
403 InvalidOperation.EniServiceManaged %s The error message returned because this operation is invalid.
403 InvalidOperation.EniLinked %s The error message returned because an ENI is attached to the instance.
403 InvalidInstanceId.NotFound %s The error message returned because the specified instance does not exist. Check whether the value of the InstanceId parameter is correct.

For a list of error codes, visit the API Error Center.