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Cloud Enterprise Network:UpdateTransitRouterEcrAttachmentAttribute

Last Updated:Sep 11, 2026

Calls the UpdateTransitRouterEcrAttachmentAttribute operation to modify the name and description of an Express Connect Router (ECR) connection under an Enterprise Edition transit router.

Operation description

UpdateTransitRouterEcrAttachmentAttribute is an asynchronous operation. The system returns a RequestId immediately, but the ECR connection has not been modified yet because the modification task is still running in the background. You can call the ListTransitRouterEcrAttachments operation to query the status of the ECR connection.

If the ECR connection is in the Modifying state, the ECR connection is being modified. In this state, you can only query the ECR connection but cannot perform other operations on it. If the ECR connection is in the Attached state, the ECR connection has been modified.

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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

cen:UpdateTransitRouterEcrAttachmentAttribute

update

*TransitRouterEcrAttachment

acs:cen:*:{#accountId}:centransitrouterattachment/{#TransitRouterAttachmentId}

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 RequestId of the API request as the ClientToken. The RequestId of each API request may be different.

123e4567-e89b-12d3-a456-42665544****

TransitRouterAttachmentId

string

Yes

The ID of the ECR connection.

tr-attach-r6g0m3epjehw57****

TransitRouterAttachmentName

string

No

The new name of the ECR connection.

The name can be empty or 1 to 128 characters in length and cannot start with http:// or https://.

nametest

TransitRouterAttachmentDescription

string

No

The new description of the ECR connection.

The description can be empty or 1 to 256 characters in length and cannot start with http:// or https://.

desctest

DryRun

boolean

No

Specifies whether to perform a dry run for this modification request, including permission and instance status checks. Valid values:

  • false (default): Sends a normal request. If the request passes the check, the transit router instance information is directly modified.

  • true: Sends a check request. Only the validation is performed, and the transit router instance information is not modified. The check items include whether required parameters are specified and the request format. If the check fails, the corresponding error is returned. If the check passes, the corresponding request ID is returned.

false

OrderType

string

No

The payer of the network instance. The payer of the ECR connection cannot be modified.

Valid values:

  • PayByResourceOwner :

    网络实例所属账号付费

  • PayByCenOwner :

    云企业网实例所属账号付费

PayByCenOwner

Response elements

Element

Type

Description

Example

object

RequestId

string

The request ID.

54B48E3D-DF70-471B-AA93-08E683A1B457

Examples

Success response

JSON format

{
  "RequestId": "54B48E3D-DF70-471B-AA93-08E683A1B457"
}

Error codes

HTTP status code

Error code

Error message

Description

400 InvalidTransitRouterAttachmentId.NotFound TransitRouterAttachmentId is not found. The error message returned because the ID of the network instance does not exist.
400 IncorrectStatus.TransitRouterAttachment The status of TransitRouterAttachment is incorrect. The error message returned because the status of the transit router attachment 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.
400 InvalidParameter.CenBandwidthPackageId The specified parameter CenBandwidthPackageId is invalid. The parameter CenBandwidthPackageId entered is illegal.
400 InvalidParameter.TransitRouterAttachmentId The specified parameter TransitRouterAttachmentId is invalid.

See Error Codes for a complete list.

Release notes

See Release Notes for a complete list.