The Cisco 7400 Internet Router is the highest performance single-rack unit (1RU) service-rich router in the industry. Its compact, stackable architecture is expressly designed for application-specific routing deployments in service provider and enterprise networks. Taking advantage of the Parallel Express Forwarding (PXF) technology patented by Cisco Systems, the Cisco 7400 Series delivers a premium suite of hardware-accelerated network services.The Cisco 7400 series delivers exceptional price/performance for enterprises and service providers. With its combination of scalable performance, density, and low per-port pricing, the Cisco 7400 series extends network-layer capabilities to a wide range of network configurations and environments. Customers gain the advantages of high-performance, network-layer switching and services, including security, QoS, and traffic management to more locations throughout the network. The Cisco 7400 series delivers the full suite of Cisco IOS Software services for managing network security, allocating QoS among applications or users, and providing value-added services such as NetFlow accounting and encryption. The Cisco 7400 series sets new standards in price, performance, and rack density, meeting requirements for high-performance Layer 3 services at an affordable price. The Network Services Engine (NSE-1) processing complex of the Cisco 7400 series takes advantage of parallel processing to offer unprecedented price and performance. NSE-1 delivers wire-rate OC3/STM-1 throughput while running concurrent high-touch WAN edge services. NSE-1 takes advantage of the new Cisco PXF technology. It is the first Cisco processing engine to offer integrated hardware acceleration, which increases the performance of the Cisco 7400 series system by 50 to 300 percent for combined "high-touch" edge services compared to systems without PXF technology.