Anti-DDoS Basic provides mitigation against DDoS attacks for Elastic Compute Service (ECS) instances free of charge. By default, if the network bandwidth of an ECS instance exceeds 180 Mbit/s, the number of packets exceeds 30,000 per second, or the number of HTTP requests exceeds 480 per second, Anti-DDoS Basic automatically scrubs traffic. The preceding values may vary based on instance types.
Before you perform a stress test on an ECS instance, you must log on to the Traffic Security console to change the traffic scrubbing thresholds for the ECS instance. For more information, see Configure traffic scrubbing thresholds.
Note
We recommend that you do not increase the request volume more than 100 times per minute during the stress test.