The Cisco Guard XT 5650-B DDoS Mitigation Appliance from Cisco Systems delivers a powerful and extensive distributed denial-of-service (DDoS) protection system. Designed to meet the performance and scalability requirements of the largest and most demanding enterprise environments, the Cisco Guard XT provides unprecedented levels of protection against today's increasingly complex and elusive attacks.Featuring two Gigabit Ethernet interfaces, a single Cisco Guard XT can process attack traffic at line rates as high as a full gigabit-per-second (Gbps). Working together, multiple Cisco Guard XTs can incrementally scale to support multigigabit rates, delivering an extensible solution that easily adapts to large and growing enterprise environments.Today's DDoS attacks are more virulent, more destructive, and more focused than ever. Targeting specific sites or competitors, these attacks easily elude and overwhelm the most common defenses. Composed of legitimate-appearing requests, massive numbers of "zombies", and spoofed identities that make it virtually impossible to identify and block these malicious flows, DDoS attacks literally paralyze their targets and prevent them from conducting business, costing billions of dollars per year in lost revenue.The Cisco Guard XT defends against this wave of DDoS attacks, enabling businesses to defeat these attacks without compromising their mission-critical and revenue-bearing operations. Based on a unique Multi Verification Process (MVP) architecture, the Cisco Guard XT employs the most advanced anomaly recognition, source verification, and anti-spoofing technologies to identify and block individual attack flows while allowing legitimate transactions to pass. Combined with an intuitive graphical user interface (GUI) and extensive multilevel monitoring and reporting designed to provide a comprehensive overview of all attack activity, the Cisco Guard XT delivers robust and comprehensive DDoS defense for protecting business operations.