ModifyExpressConnectRouterAssociationAllowedPrefix - Express Connect

Modifies the prefixes for a virtual private cloud (VPC) or a transit router that is attached to an Express Connect Router (ECR).

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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

expressconnectrouter:ModifyExpressConnectRouterAssociationAllowedPrefix

update

*ExpressConnectRouter

acs:expressconnectrouter::{#accountId}:expressconnectrouter/{#EcrId}

None

Request parameters

Parameter	Type	Required	Description	Example
EcrId	string	Yes	The ID of ECR.	ecr-mezk2idmsd0vx2****
AssociationId	string	Yes	The ID of the association between the ECR and the VPC or TR.	ecr-assoc-9p2qxx5phpca2m****
AllowedPrefixes	array	No	The list of allowed route prefixes.
	string	No	An allowed route prefix.	192.0.20.0/24
DryRun	boolean	No	Specifies whether to perform a dry run. Valid values: true: Performs a dry run. false (default): Sends a normal request.	false
ClientToken	string	No	A client token used to ensure the idempotence of the request. Generate a parameter value from your client to make sure that the value is unique among different requests. The token can contain only ASCII characters. Note If you do not specify this parameter, the system automatically uses the RequestId of the API request as the ClientToken. The RequestId of each API request may be different.	02fb3da4-130e-11e9-8e44-00****
AllowedPrefixesMode	string	No	The prefix routing pattern. Valid values: MatchMode: Publishes only the configured route prefixes to your data center. Existing specific routes are withdrawn. IncrementalMode: Publishes the configured route prefixes to your data center. Withdraw previously published more specific routes that are covered by the configured prefixes. More specific routes that are not covered by the configured prefixes remain published.	MatchMode

Response parameters

Parameter	Type	Description	Example
	object	RpcResponse
RequestId	string	The request ID.	05130E79-588D-5C40-A718-C4863A59****
Success	boolean	Indicates whether the call was successful. Valid values: True False	True
Code	string	Indicates whether the call was successful. A return value of 200 indicates that the call was successful. For other returned values, the call failed. For more information, see Error codes.	200
Message	string	The returned message.	OK
HttpStatusCode	integer	The HTTP status code.	200
DynamicCode	string	The dynamic error code.	IllegalParamFormat.EcrId
DynamicMessage	string	The dynamic error message that is used to replace the `%s` placeholder in the `ErrMessage` parameter. Note If the `ErrMessage` parameter returns The Value of Input Parameter %s is not valid and the `DynamicMessage` parameter returns DtsJobId, the specified DtsJobId parameter is invalid.	The param format of EcrId **** is illegal.
AccessDeniedDetail	string	The details of the access denial.	Authentication is failed for ****

Examples

Success response

JSON format

{
  "RequestId": "05130E79-588D-5C40-A718-C4863A59****",
  "Success": true,
  "Code": "200",
  "Message": "OK",
  "HttpStatusCode": 200,
  "DynamicCode": "IllegalParamFormat.EcrId",
  "DynamicMessage": "The param format of EcrId **** is illegal.",
  "AccessDeniedDetail": "Authentication is failed for ****"
}

Error codes

HTTP status code	Error code	Error message	Description
400	IncorrectStatus.Ecr	Ecr Status does not allow current operation.	The status of the express connect gateway instance does not allow the current operation. Currently, other operations are being performed or the express connect gateway instance is being deleted. Please try again later.
400	IncorrectStatus.EcrAssociation	Ecr Association Status does not allow current operation.	The ECR Association instance does not allow the current operation. Please try again after the operation in progress completes
400	OperationDenied.ForceDeleting	The current instance is being deleted.	Your current operation is rejected and the leased line gateway instance is being forcibly deleted. Please try again later.
400	IllegalParamFormat.AllowedPrefixes	The prefix parameter format is invalid. Procedure.	The format of the specified prefix route segment is incorrect.
400	MissingParam.%s	The param of %s is missing.	The request parameters are not specified. Please check the corresponding parameters and try again.
400	IllegalParamFormat.%s	The param format of %s is illegal.	Illegal parameter format
400	IllegalParamSize.AllowedPrefixes	The number of prefix routes exceeded the quota.	The number of prefix routes you have entered exceeds the quota. Please apply for expansion.
400	Conflict.Lock	There are other unfinished operations.	You currently have other unfinished operations, please try again later
404	ResourceNotFound.EcrId	EcrId not found.	ECR instance does not exist
404	ResourceNotFound.AssociationId	EcrAssociationId not found.	ECR Association instance does not exist

See Error Codes for a complete list.

Release notes

See Release Notes for a complete list.