Anti-DDoS Basic automatically scrubs traffic when it exceeds the scrubbing threshold for a cloud service's public IP address. The scrubbing threshold is determined by instance type — when you create or modify an Elastic Compute Service (ECS) instance, Server Load Balancer (SLB) instance, or NAT Gateway, the system calculates the maximum scrubbing threshold based on the instance type.
Blackhole filtering thresholds are calculated based on the region and bandwidth of the instance.
Scrubbing threshold references
Each cloud service type has its own scrubbing threshold specification. Refer to the per-service documentation for the threshold values that apply to your instance type.
| Cloud service | Reference document |
|---|---|
| Elastic Compute Service (ECS) | Anti-DDoS Basic for ECS |
| Server Load Balancer (SLB) | Anti-DDoS Basic for SLB |
| NAT Gateway | Anti-DDoS Basic for NAT Gateway |
| Elastic IP Address (EIP) | Anti-DDoS Basic for EIPs |
| Web Application Firewall (WAF) | Anti-DDoS Basic and blackhole filtering for WAF |
| Global Accelerator (GA) | Anti-DDoS Basic for GA |
IPv6 Gateway | Not available. Documentation will be updated after the template is finalized. |
Anycast Elastic IP Address | Not available. Documentation will be updated after the template is finalized. |
References
For definitions of traffic scrubbing, blackhole filtering, and other basic concepts, see Terms.