Updated on 2026-07-06 GMT+08:00

Modifying Instance Specifications

After purchasing an instance, you can adjust its specifications to meet changing DDoS protection requirements.

Fees Description

Modifying specifications will lead to fee changes. For details, see Pricing of a Changed Specification.

Limitations and Constraints

  • The specifications of a non-BGP triple-line AAD instance (no longer available for purchase) cannot be modified.
  • The line of an instance is fixed after purchase and cannot be changed when modifying specifications.
  • The specifications of an expired instance cannot be modified.
  • The specifications of a frozen instance cannot be modified.

Upgrading the Specifications of an AAD Instance

  1. Log in to the AAD console.
  2. In the navigation pane on the left, choose Advanced Anti-DDoS > Instances.
  3. On the displayed page, locate the target instance and click Change Specifications.
  4. On the Modify AAD Specifications page, adjust the instance specifications.

    Table 1 Parameter description

    Parameter

    Description

    Basic Protection Bandwidth

    The basic protection bandwidth is purchased by customers. If the peak attack traffic is less than or equal to the basic protection bandwidth, customers do not need to pay extra fees.

    Elastic Protection Bandwidth

    Elastic protection bandwidth is the maximum available defense bandwidth. The elastic protection bandwidth is not a part that is added on top of the basic protection bandwidth. If the elastic protection bandwidth is the same as the basic protection bandwidth, the elastic bandwidth will not work.

    Service Bandwidth

    The service bandwidth indicates clean service bandwidth forwarded to the origin server from the AAD scrubbing center. Each instance includes 100 Mbit/s of service bandwidth at no charge. If the AAD equipment room is outside of Huawei Cloud, it is recommended that the purchased AAD service bandwidth be equal to or greater than the egress bandwidth of the origin server.

    Protected Domain Names

    This parameter is available only for domain-based instances.

    Forwarding Rules

    This parameter is available only for IP-based instances.

  5. After you click Submit, the system will determine whether the configuration has changed. If the configuration does not change, the system displays a failure message indicating that selected specifications are the same as original specifications. If the configuration has changed, the Details page is displayed.
  6. Click Submit Order. When the payment is successful, the Order submitted successfully page is displayed.