The Agilent/Keysight E7904A is a four-port Gigabit Ethernet test module purpose-built for router validation and network stress testing. It generates and analyzes IP and MPLS packets at wire speed across four 1 Gb Ethernet interfaces, emulating industry-standard routing protocols including BGP-4, OSPF, IS-IS, RIP, RSVP-TE, LDP, and CR-LDP. The module delivers full-duplex packet generation with flexible VLAN support, Internet-scale routing simulation, and real-time protocol analysis—making it essential for comprehensive network device characterization and convergence testing.
Technical Specifications
• Interfaces: Four (4) 1 Gb Ethernet ports with duplex SC connectors
• Optical Interface: 1000BASE-SX/LX; 850 nm receiver and 850 nm Class 1 laser (multimode), IEEE 802.3z compliant
• Packet Generation: IP and MPLS at wire speed; full-duplex Ethernet frame encapsulation
• Frame Sizes: Runt 9–63 bytes; jumbo up to 65,535 bytes (8,096 bytes for traffic generation and analysis)
• Capture Memory: 64 MB per Gigabit Ethernet port at line rate
• VLAN Capability: IEEE 802.1p/Q; up to 4,095 VLAN IDs and 8 priority levels on transmit
• Statistics: Real-time Layer 2 and Layer 3 monitoring with Ethernet receive frame counts (FCS errors, aborted, invalid frames)
– Key Features
• Routing protocol emulation: BGP-4, OSPF, IS-IS, RIP, RSVP-TE, LDP, CR-LDP
• Multi-access network support with multiple peer sessions
• Flexible route advertisement with extensive attribute control
• Real-time packet capture with manual or event-triggered start/stop
• E-BGP peering over VLAN channels
• Mixed tagged/untagged traffic transmission
• Protocol decodes for BGP-4, OSPF, IS-IS
• Offline packet analysis tools
– Typical Applications
• Router data forwarding and convergence testing
• Network device stress validation
• Internet-scale routing simulation
• Protocol behavior analysis under realistic conditions
• Forwarding table complexity verification
– Compatibility & Integration
The E7904A operates as a module within the RouterTester platform, integrating with RouterTester’s protocol emulation software for end-to-end network testing scenarios.

















