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Cloud Enterprise Network:ModifyTransitRouterMulticastDomain

Last Updated:Aug 07, 2025

Modifies the name, description, and feature options of a multicast domain.

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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 support 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:ModifyTransitRouterMulticastDomain

update

*TransitRouterMulticastDomain

acs:cen:*:{#accountId}:centransitroutermulticast/{#TransitRouterMulticastDomainId}

None None

Request parameters

Parameter

Type

Required

Description

Example

ClientToken

string

No

A client token that ensures the idempotence of the request.

Generate a unique token on your client for each request. The token can contain only ASCII characters.

123e4567-e89b-12d3-a456-4266****

TransitRouterMulticastDomainId

string

Yes

The ID of the multicast domain.

tr-mcast-domain-40cwj0rgzgdtam****

TransitRouterMulticastDomainName

string

No

The new name of the multicast domain.

The name can be empty or 1 to 128 characters long. It cannot start with http:// or https://.

nametest

TransitRouterMulticastDomainDescription

string

No

The new description of the multicast domain.

The description can be empty or 1 to 256 characters long. It cannot start with http:// or https://.

desctest

DryRun

boolean

No

Specifies whether to perform a dry run. Valid values:

  • true: Performs a dry run. The system checks the required parameters, request format, and service limits. If the check fails, an error message is returned. If the check passes, the DryRunOperation error code is returned.

  • false (default): Sends the request. If the request passes the check, the name and description of the multicast domain are modified.

false

Options

object

No

The feature options of the multicast domain.

Igmpv2Support

string

No

Specifies whether to enable the Internet Group Management Protocol (IGMP) feature for the multicast domain. When this feature is enabled, hosts can use IGMP to dynamically join or leave multicast groups. Set the value to enable.

Note
  • The IGMP feature is in public preview. To use this feature, contact your account manager.

  • You cannot disable the IGMP feature after it is enabled.

enable

Response parameters

Parameter

Type

Description

Example

object

The response.

RequestId

string

The request ID.

26273D23-5CB0-5EFC-AF5F-78A5448084C9

Examples

Success response

JSON format

{
  "RequestId": "26273D23-5CB0-5EFC-AF5F-78A5448084C9"
}

Error codes

HTTP status code

Error code

Error message

Description

400 Illegal.Name Name is illegal. The error message returned because the name is invalid.
400 Illegal.Description Description is illegal. The error message returned because the description is invalid.
400 InvalidMulticastDomainId.NotFound The specified MulticastDomainId is not found. The error message returned because the specified multicast domain does not exist.
400 DryRunOperation Request validation has been passed with DryRun flag set. The error message returned because the dry run request passed the precheck.
400 IllegalParam.Igmpv2Support The specified Igmpv2Support is illegal. Valid values are [enable, disable]. The parameter Igmpv2Support is invalid. Value range: enable, disable.
400 OperationUnsupported.Igmpv2Support The current UID does not allow the creation of a igmpv2 multicast domain. Please submit a ticket. The current UID does not allow the creation of a multicast domain of the igmpv2 type. Please submit a ticket.
400 OperationUnsupported.NotAllowedDisableIgmpv2Support The operation is not permitted because Igmpv2Support is not currently available to be disabled. The operation is not permitted because Igmpv2Support is not currently available to be disabled.
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.

See Error Codes for a complete list.

Release notes

See Release Notes for a complete list.