AttachCenChildInstance - API Reference| Alibaba Cloud Documentation Center

Description

Attach a network (VPC or VBR) to a CEN instance. The attached networks (VPC or VBR) can communicate with each other.

Note: If the network to attach belongs to another account, the account owner of the network must use the GrantInstanceToCen API to authorize CEN to attach the network.

Request parameters

Name	Type	Required	Description
Action	String	Yes	The action to perform. Valid value: `AttachCenChildInstance`
CenId	String	Yes	The ID of the CEN instance.
ChildInstanceId	String	Yes	The ID of the network to attach.
ChildInstanceType	String	Yes	The type of the network to attach. Valid value: `VPC \| VBR` Note: Ensure that the network is not used in Express Connect.
ChildInstanceRegionId	String	Yes	The ID of the region where the network is located.
ChildInstanceOwnerId	Long	No	The account ID to which the network belongs. Note: This parameter is required when attaching a network instance in another account.

Response parameters

Name	Type	Description
RequestId	String	The ID of the request.

Error codes

The following table lists the error codes specific to this API. For more information about common error codes, see Common error codes.

Error code	Error message	HTTP status code	Description
InvalidOperation.ChildInstanceAlreadyAttached	Operation is invalid because the child-instance has already been attached to another CEN.	409	The network has been attached.

Examples

Request example

http://cbn.aliyuncs.com/?Action=AttachCenChildInstance
&CenId=vpc-hp3kz27b1uv9hsmm9vqiv
&ChildInstanceId=vpc-2zeki1et77fssihllb9s7
&ChildInstanceRegionId=cn-beijing
&ChildInstanceType=vpc
&<Common parameters>

Response example

XML format

<?xml version='’1.0'’ encoding='’UTF-8'’?>
<AttachCenChildInstanceResponse>
     <RequestId>A278B8A6-A5B8-4FDE-9F70-95F0F6A1D68A</RequestId>
</AttachCenChildInstanceResponse>

JSON format

{
    "RequestId":"A278B8A6-A5B8-4FDE-9F70-95F0F6A1D68A"
}