This topic describes the billing of advanced mitigation sessions.
What is an advanced mitigation session?
Anti-DDoS Proxy provides the advanced mitigation feature. The feature leverages anti-DDoS scrubbing centers of Alibaba Cloud in the local region to protect resources against DDoS attacks. The following table describes the instance types that support the feature.
Service | Instance type | Number of advanced mitigation sessions that are provided free of charge per calendar month |
Anti-DDoS Proxy (Chinese Mainland) | Advanced | Two sessions |
Anti-DDoS Proxy (Outside Chinese Mainland) | Insurance | Two sessions |
Secure Chinese Mainland Acceleration (Sec-CMA) Note An instance of the Sec-CMA mitigation plan and an instance of the Sec-CMA (Basic) mitigation plan have the same specifications except the number of advanced mitigation sessions that are provided free of charge per calendar month. | Two sessions | |
Sec-CMA (Basic) | One session |
If the advanced mitigation sessions that are provided free of charge per calendar month cannot meet your business requirements, we recommend that you purchase global advanced mitigation sessions. If the advanced mitigation sessions that are provided free of charge are exhausted within a calendar month and a volumetric attack whose traffic exceeds the clean bandwidth of your instance occurs, Anti-DDoS Proxy starts to consume the global advanced mitigation sessions that you purchased to protect your service. The following table describes the types of global advanced mitigation sessions.
Item | Anti-DDoS Proxy (Chinese Mainland) | Anti-DDoS Proxy (Outside Chinese Mainland) | |
Advanced mitigation session for the Insurance mitigation plan | Advanced mitigation session for the Insurance mitigation plan | Advanced mitigation session for the Sec-CMA mitigation plan | |
Protection scope | Services that are protected by all valid instances of the Advanced mitigation plan within your Alibaba Cloud account. You do not need to bind a global advanced mitigation session to a specific instance. | Services that are protected by all valid instances of the Insurance mitigation plan within your Alibaba Cloud account. You do not need to bind a global advanced mitigation session to a specific instance. | Services that are protected by all valid instances of the Sec-CMA and Sec-CMA (Basic) mitigation plans within your Alibaba Cloud account. You do not need to bind a global advanced mitigation session to a specific instance |
Validity period |
| One year from the purchase date | One year from the purchase date |
Limits | None. | Each Alibaba Cloud account can use advanced mitigation for up to 20 sessions each calendar month. After 20 sessions are used, advanced mitigation is disabled. The 20 sessions of advanced mitigation each calendar month include the following items:
If advanced mitigation is disabled, you cannot use advanced mitigation in the current calendar month. You can only continue to use advanced mitigation in the following calendar month. Note If your service frequently experiences volumetric DDoS attacks, we recommend that you purchase an Anti-DDoS Proxy (Outside Chinese Mainland) instance of the Unlimited mitigation plan. The instance provides unlimited advanced mitigation capabilities. | |
Billing |
| USD 1,580 per session. | USD 7,790 per session. |
For more information about how to purchase a global advanced mitigation session, see Purchase global advanced mitigation sessions.
Consumption of advanced mitigation sessions
If an Anti-DDoS Proxy instance receives more than 5 Gbit/s of DDoS attack traffic, an advanced mitigation session that is provided for the instance is consumed. The advanced mitigation session protects the instance for 24 hours. All DDoS attacks that occur on the Anti-DDoS Proxy instance within 24 hours consume the same advanced mitigation session.
Overdue payments
Global advanced mitigation sessions use the subscription billing method. Therefore, no overdue payments occur for global advanced mitigation sessions.
Refunds
After you purchase global advanced mitigation sessions, you cannot request a refund for the sessions.
Bill query
You can query bills in User Center. For more information, see Monthly bills.