AttachCenChildInstance - Cloud Enterprise Network - Alibaba Cloud Documentation Center

Attaches a network instance to a Cloud Enterprise Network (CEN) instance.

Operation description

CEN allows you to attach a network instance that belongs to another Alibaba Cloud account to your CEN instance. Before you attach the network instance, CEN must acquire permissions to access the network instance that belongs to another Alibaba Cloud account.

For more information about how to grant CEN permissions on virtual private clouds (VPCs) that belong to another Alibaba Cloud account, see GrantInstanceToCen .
For more information about how to grant CEN permissions on Cloud Connect Network (CCN) instances that belong to another Alibaba Cloud account, see GrantInstanceToCbn .
By default, you cannot grant permissions on virtual border routers (VBRs) that belong to another Alibaba Cloud account to a CEN instance. If you need to use this feature, contact your account manager.

Debugging

You can run this interface directly in OpenAPI Explorer, saving you the trouble of calculating signatures. After running successfully, OpenAPI Explorer can automatically generate SDK code samples.

Debug

Authorization information

The following table shows the authorization information corresponding to the API. The authorization information can be used in the Action policy element to grant a RAM user or RAM role the permissions to call this API operation. Description:

Operation: the value that you can use in the Action element to specify the operation on a resource.
Access level: the access level of each operation. The levels are read, write, and list.
Resource type: the type of the resource on which you can authorize the RAM user or the RAM role to perform the operation. Take note of the following items:
- The required resource types are displayed in bold characters.
- If the permissions cannot be granted at the resource level, All Resources is used in the Resource type column of the operation.
Condition Key: the condition key that is defined by the cloud service.
Associated operation: other operations that the RAM user or the RAM role must have permissions to perform to complete the operation. To complete the operation, the RAM user or the RAM role must have the permissions to perform the associated operations.

Operation	Access level	Resource type	Condition key	Associated operation
cen:AttachCenChildInstance	update	CenInstance acs:cen::{#accountId}:ceninstance/{#ceninstanceId} virtualborderrouter acs:vpc::{#accountId}:virtualborderrouter/{#virtualborderrouterId} VPC acs:vpc:*:{#accountId}:vpc/{#vpcId}	none	none

Request parameters

Parameter	Type	Required	Description	Example
CenId	string	Yes	The ID of the CEN instance.	cen-7qthudw0ll6jmc****
ChildInstanceId	string	Yes	The ID of the network instance that you want to attach to the CEN instance.	vpc-bp18sth14qii3pnvx****
ChildInstanceType	string	Yes	The type of the network instance. Valid values: VPC: VPC VBR: VBR CCN: CCN instance	VPC
ChildInstanceRegionId	string	Yes	The ID of the region where the network instance is deployed. You can call the DescribeRegions operation to query the most recent region list.	cn-hangzhou
ChildInstanceOwnerId	long	No	The ID of the Alibaba Cloud account to which the network instance belongs. Note If the network instance and the CEN instance belong to different Alibaba Cloud accounts, this parameter is required.	1688000000000000

Response parameters

Parameter	Type	Description	Example
	object
RequestId	string	The ID of the request.	A278B8A6-A5B8-4FDE-9F70-95F0F6A1D68A

Examples

Sample success responses

JSONformat

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

Error codes

HTTP status code	Error code	Error message	Description
400	Forbbiden.AttachChildInstanceAcrossBid	Operation is invalid, please apply for cross-bid attaching.	-
400	IncorrectStatus.VpcSwitch	Operation is failed because some virtual switch is modifying within the same VPC.	The error message returned because the status of the vSwitch does not support this operation. Try again later.
400	Forbbiden.CloudBoxVSwitchExist	The operation is not allowed because of cloud box vswitch existed.	The error message returned because the specified vSwitch is associated with a CloudBox. You cannot associate with the vSwitch.
400	OperationFailed.InvalidVpcStatus	Operation is failed because the child-instance is configuring.	-
400	OperationFailed.InvalidTransitRouter	Operation failed because the transit router is not supported.	Operation failed because the transit router is not supported.
400	OperationUnsupported.CenFullLevel	CEN full level does not support vpn bgp.	The error message returned because CEN instances in FULL mode do not support BGP for VPN gateways.
400	IncorrectStatus.VpcRouteTable	The VPC route table is not in a desired state.	The error message returned because the VPC route table is in an unstable state. Try again later.
400	InvalidOperation.VbrAttachedToEcr	VBR has alreay attached to ECR.	VBR has alreay attached to ECR.
400	OperationUnsupported.VpcRoutePropagationSource	The operation on this VPC route propagation source is not supported.	The operation on this VPC route propagation source is not supported.
400	InvalidStatus.ResourceStatus	The resource is not in a valid state for the attachment operation.	The error message returned because the status of the specified resource does not support this operation. Try again later.
400	IncorrectStatus.TransitRouter	The status of TransitRouter is incorrect.	The error message returned because the status of the transit router does not support this operation. Try again later.
400	InvalidParameter	Invalid parameter.	The error message returned because the parameter is set to an invalid value.
400	Unauthorized	The AccessKeyId is unauthorized.	The error message returned because you do not have the permissions to perform this operation.
403	Forbidden.AttachChildInstance	The attached VBR on some access device models are not supported. Please submit a ticket to continue using this VBR on CEN.	The attached VBR on some access device models are not supported. Please submit a ticket to continue using this VBR on CEN.
404	Bid.NotFound	Not found childInstance Bid by specified AliUid.	The error message returned because the BID does not exist.
404	Operation.FailedAndTryAgain	Fail to get customer label by the specified aliUid.	-
409	InvalidOperation.ChildInstanceRIAlreadyExist	Operation is invalid because the child-instance has already been attached to Express Connect.	-
409	Forbbiden.AttachChildInstanceAcrossUid	Operation is invalid because the child-instance is not authorized to CEN.	Operation is invalid because the child instance is not authorized to CEN.
409	InvalidOperation.ChildInstanceAlreadyAttached	Operation is invalid because the child-instance has already been attached to another CEN.	The error message returned because the network instance is already attached to another CEN instance.
409	InvalidOperation.CenAlreadyAutoPubilshRouteToInstance	Operation is invalid because other cen has already auto published route to this instance.	The error message returned because this operation is not supported when one or more other CEN instance can advertise routes to the specified instance.

For a list of error codes, visit the Service error codes.

Change history

Change time	Summary of changes	Operation
2024-07-10	The Error code has changed	View Change Details
2023-03-15	The Error code has changed	View Change Details