CreateTransitRouterPrefixListAssociation - Cloud Enterprise Network

Associates the route table of an Enterprise Edition transit router with a prefix list.

Operation description

To associate an Enterprise Edition transit router with a route prefix, you must meet the following requirements:

You are familiar with the limits and route compatibility notes of prefix lists. For more information, see Prefix lists.
A prefix list is created. For more information, see CreateVpcPrefixList .
If the prefix list and the Enterprise Edition transit router belong to different Alibaba Cloud accounts, the prefix list is shared with the Alibaba Cloud account that owns the Enterprise Edition transit router. For more information, see Resource sharing and API references for resource sharing.

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:CreateTransitRouterPrefixListAssociation	create	All Resources *	none	none

Request parameters

Parameter	Type	Required	Description	Example
ClientToken	string	No	The client token that is used to ensure the idempotence of the request. You can use the client to generate the token, but you must make sure that the token is unique among different requests. The client token can contain only ASCII characters. Note If you do not specify this parameter, the system automatically uses the request ID as the client token. The request ID may be different for each request.	123e4567-e89b-12d3-a456-4266****
RegionId	string	Yes	The ID of the region where the transit router is deployed. You can call the DescribeChildInstanceRegions operation to query the most recent region list.	cn-hangzhou
TransitRouterId	string	Yes	The ID of the transit router.	tr-6ehx7q2jze8ch5ji0****
NextHopType	string	No	The type of the next hop. Valid values: BlackHole: specifies that all the CIDR blocks in the prefix list are blackhole routes. Packets destined for the CIDR blocks are dropped. VPC: specifies a virtual private cloud (VPC) connection as the next hop. VBR: specifies a virtual border router (VBR) connection as the next hop. TR: specifies an inter-region connection as the next hop. ECR: specifies an Express Connect Router (ECR) connection as the next hop.	VPC
PrefixListId	string	Yes	The ID of the prefix list.	pl-6ehtn5kqxgeyy08fi****
TransitRouterTableId	string	Yes	The ID of the route table of the transit router.	vtb-6ehgc262hr170qgyc****
NextHop	string	Yes	The ID of the next hop connection. To specify all CIDR blocks in the prefix list as blackhole routes, set this parameter to BlackHole.	tr-attach-flbq507rg2ckrj****
OwnerUid	long	No	The ID of the Alibaba Cloud account to which the prefix list belongs.	1210123456123456
DryRun	boolean	No	Specifies whether to perform only a dry run, without performing the actual request. Valid values: true: performs only a dry run. The system checks the request for potential issues, including missing parameter values, incorrect request syntax, and service limits. If the request fails the dry run, an error code is returned. If the request passes the dry run, the `DryRunOperation` error code is returned. false (default): performs a dry run and sends the request. Note This parameter is not in use.	false

Response parameters

Parameter	Type	Description	Example
	object	The response.
RequestId	string	The ID of the request.	0C2EE7A8-74D4-4081-8236-CEBDE3BBCF50

Examples

Sample success responses

JSONformat

{
  "RequestId": "0C2EE7A8-74D4-4081-8236-CEBDE3BBCF50"
}

Error codes

HTTP status code	Error code	Error message	Description
400	NoPermission.AliyunServiceRolePolicyForCEN	You are not authorized to create the service linked role. Role Name: AliyunServiceRolePolicyForCEN. Service Name: cen.aliyuncs.com. Make sure that the user has been granted the ram:CreateServiceLinkedRole permission.	The error message returned because you do not have the permissions to create the service-linked role whose role name is AliyunServiceRolePolicyForCEN and service name is cen.aliyuncs.com. You must acquire the ram:CreateServiceLinkedRole permission before you can create the service-linked role.
400	ResourceNotSupport.CCN	CCN not support prefix list.	The error message returned because prefix lists are not supported by CCN instances.
400	ResourceNotFound.PrefixlistCidrs	Can not find any cidr of specified prefix list.	The error message returned because the specified prefix list does not contain a CIDR block.
400	ResourceNotFound.Nexthop	The specified nexthop instance is not exsit.	The error message returned because the specified next hop does not exist.
400	ResourceExisted.PrefixlistAssociation	The prefix list has been already associated with this route table.	The error message returned because the specified prefix list is already associated with a route table.
400	ResourceNotFound.PrefixlistAssociation	The prefix list is not associated with this route table.	The error message returned because the specified prefix list is not associated with a route table.
400	ResourceConflict.Route	Some of the prefixes of the prefix list are conflicted with exsited routes.	The error message returned because the specified prefix list conflicts with an existing route.
400	MultipleFound.PrefixlistAssociation	multiple same prefix association record found.	The error message returned because multiple configuration duplicates exist in the system.
400	QuotaReached.Route	The quota of the route table is not enough for the request prefix list.	The error message returned because the number of routes has reached the upper limit.
400	InvalidStatus.PrefixlistAssociation	The prefix list association is not in a valid state for the operation.	The error message returned because the status of the specified prefix list does not support this operation. Try again later.
400	NotSupport.TrType	The basic tr type is not support for this operation.	The error message returned because this operation is not supported by Basic Edition transit routers.
400	InvalidValue.PrefixlistCidr	Invalid cidr exist in the specified prefixlist.	The error message returned because the specified prefix list contains an invalid CIDR block.
400	ResourceNotSupport.Nexthop	The specified nexthop instance type is not support for the operation.	The error message returned because this operation is not supported by the specified next hop.
400	ResourceMismatch.Nexthop	The specified nexthop and nexthop type mismatched.	The error message returned because the specified next hop or next hop type is invalid.
400	ResourceNotFound.PrefixList	The specified prefixlist does not found.	The error message returned because the specified prefix list does not exist.
400	OperationDenied.SystemPrefixList	SystemPrefixList can not be operated.	The error message returned because this operation is not supported by the system prefix list.
400	OperationFailed.OperateShareResource	Operate share prefixlist failed.	The error message returned because the specified prefix list failed to be shared.
400	InvalidStatus.Prefixlist	Prefixlist is not in a operate status.	The error message returned because the status of the specified prefix list does not support this operation.
400	RegionNotSupport.Prefixlist	Prefixlist association are not supported in this region.	The error message returned because the feature is not supported in the specified region.
400	OperationFailed.TransitRouterNotExist	Operation failed because transit router not exist.	The error message returned because the specified transit router does not exist.
400	IncorrectStatus.RouteTable	RouteTable status is invalid.	The error message returned because the operation is not supported when the specified route table is in an unstable state.
400	IllegalParam.TransitRouterTableId	The specified Route Table ID is invalid.	The Route Table ID is invalid.
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.
404	InvalidRouteTableId.NotFound	The specified RouteTableId is not found.	The specified route table ID does not exist.

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

Change history

Change time	Summary of changes	Operation
2023-11-22	The Error code has changed	View Change Details
2022-08-25	The Error code has changed	View Change Details