The Huawei AntiDDoS1000 DDoS protection system utilizes Big Data analytics technology and supports modeling for 60+ types of network traffic to offer second-level attack response and comprehensive defense against 100+ types of attacks. The AntiDDoS1000 can be deployed on a user network using in-line mode to defend against volumetric and application attacks in real time. When attack traffic exceeds the bandwidth or defense capability of a local scrubbing device, the AntiDDoS1000 associates with the AntiDDoS device of the upstream carrier or ISP to defend against flood attacks and guarantee service continuity.