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    Anti-DDoS:ModifyIpDefenseThreshold

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    Anti-DDoS:ModifyIpDefenseThreshold

    Last Updated:Jan 19, 2026

    Modifies the scrubbing thresholds for an asset that is assigned a public IP address. This operation is a synchronous operation that supports Terraform.

    Operation description

    Limits

    You can call this operation up to 10 times per second per account. If the number of the calls per second exceeds the limit, throttling is triggered. As a result, your business may be affected. We recommend that you take note of the limit when you call this operation.

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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

    yundun-ddos:ModifyIpDefenseThreshold

    update

    *All Resource

    *

    		 None None

    Request parameters

    Parameter

    Type

    Required

    Description

    Example
    DdosRegionId

    string

    Yes

    The region ID of the asset.

    Note

    You can call the DescribeRegions operation to query the most recent region list.

    cn-hangzhou
    InstanceType

    string

    Yes

    The type of the asset. Valid values:

    • ecs: an Elastic Compute Service (ECS) instance.

    • slb: a Server Load Balancer (SLB) instance.

    • eip: an elastic IP address (EIP).

    • ipv6: an IPv6 gateway.

    • swas: a simple application server.

    • waf: a Web Application Firewall (WAF) instance of the Exclusive edition.

    • ga_basic: a Global Accelerator (GA) instance.

    ecs
    InstanceId

    string

    Yes

    The ID of the asset.

    Note

    You can call the DescribeInstance operation to query the IDs of ECS instances, SLB instances, and EIPs within the current Alibaba Cloud account.

    i-uf6idy3c57psf7vu****
    Bps

    integer

    No

    The traffic scrubbing threshold. Unit: Mbit/s. The traffic scrubbing threshold cannot exceed the peak inbound or outbound Internet traffic, whichever is larger, of the asset. When you modify Bps, Pps is required. Otherwise, Bps does not take effect.

    You can use the monitoring tool that is provided by the asset to query the Internet traffic of the asset:

    100
    Pps

    integer

    No

    The packet scrubbing threshold. Unit: packets per second (PPS). When you modify Pps, Bps is required. Otherwise, Pps does not take effect.

    The packet scrubbing threshold cannot exceed the peak number of inbound or outbound packets, whichever is larger, of the asset. You can use the monitoring tool that is provided by the asset to query the number of packets of the asset:

    70000
    IsAuto

    boolean

    No

    Specifies whether to automatically adjust the scrubbing threshold based on the traffic load on the asset. Valid values:

    • true: automatically adjusts the scrubbing threshold. You do not need to configure the Bps and Pps parameters.

    • false: The scrubbing threshold is not automatically adjusted. You must configure the Bps and Pps parameters. This is the default value.

    false
    InternetIp

    string

    Yes

    The IP address of the asset.

    192.0.XX.XX

    Response elements

    Element

    Type

    Description

    Example

    object

    RequestId

    string

    The ID of the request, which is used to locate and troubleshoot issues.

    BC0607F8-A9F3-5E11-977B-D59CD58C64ED

    Examples

    Success response

    JSON format

    {
  "RequestId": "BC0607F8-A9F3-5E11-977B-D59CD58C64ED"
}

    Error codes

    See Error Codes for a complete list.

    Release notes

    See Release Notes for a complete list.