The Spirent LAN3320A is a SmartMetrics XD module delivering high-performance network performance analysis for Ethernet infrastructure testing. This dual-port module generates wire-rate traffic across 10/100/1000 Mbps and Gigabit Ethernet Fiber interfaces, supporting both copper and fiber connectivity without additional hardware. It integrates within Spirent SmartBits chassis systems, scaling from single port to 768 ports, enabling deterministic testing of switches, routers, firewalls, and embedded network systems.
The LAN3320A generates IP flows with QoS markers and emulates complex network conditions including routing interactions and control plane behavior. Engineers configure user-defined frames, inject packet fragmentation, and apply error injection for negative test scenarios. Link Aggregation Group (LAG) emulation supports transmit algorithms (round robin, hashing) to validate load balancing and traffic distribution across aggregated links. The module captures granular performance metrics—throughput, latency, packet loss—with repeatable, deterministic traffic patterns for rigorous functional validation of network protocols and IP-based services.
Technical Specifications
• Module Type: SmartMetrics XD Module
• Ports: 2
• Ethernet Speeds: 10/100/1000 Mbps, Gigabit Ethernet Fiber
• Connectivity: Dual Media Operation (Fiber or Copper per port, no additional hardware required)
• Traffic Generation: Wire-rate traffic generation across all supported speeds
• Protocol Support: Layer 2 to Layer 3 protocols
• Performance Metrics: Throughput, latency, packet loss validation
– Key Features
• IP flow generation with QoS markers
• User-defined frame construction and IP packet fragmentation
• Configurable error injection for negative testing
• LAG emulation with round robin and hashing transmit algorithms
• Complex network condition and routing interaction emulation
• Granular data capture for deterministic, repeatable traffic patterns
– Typical Applications
• Network performance testing of switches, routers, and firewalls
• Reliability and stability testing of network protocols and IP services
• Embedded systems network performance validation
• Control and data plane LAG testing
– Compatibility & Integration
The LAN3320A integrates with Spirent SmartBits 6000C and SmartBits 6000B chassis systems. It operates with Spirent TestCenter software on Windows XP SP2, Windows 2003 Server (32-bit), RedHat EL3 and EL5, and Solaris 8.0 and 10.0.
















