NS-5400-DCJUNIPERThe NetScreen Series Security Systems are purpose-built, firewall/VPN security systems designed for large enterprise, carrier, and data center networks. The 2-slot NetScreen-5200 and the 4-slot NetScreen-5400 integrate firewall, VPN, DoS and DDoS protection, and traffic-management functionality in a low-profile modular chassis. Built around our third-generation security ASIC and distributed system architecture, these systems offer excellent scalability and flexibility, while providing a higher level security system through the NetScreen ScreenOS custom operating system.