The Spirent AT9155Bs is an ATM load module for the Smartbits platform, engineered to generate and monitor ATM traffic with full-duplex, full wire-rate frame-level testing and full-cell-rate switch testing capabilities. This single-port optical module supports ATM-to-LAN and LAN-to-ATM interworking, enabling validation of edge devices, high-performance backbones, and xDSL network endpoints through frame generation across up to 2,048 PVCs and SVCs.
Technical Specifications
• Product Type: ATM Load Module
• Model: AT9155Bs
• Interface: Single Optical OC-3/STM-1 Port
• Supported Technologies: ATM, LAN
• Interworking: ATM-to-LAN, LAN-to-ATM
• Frame Generation Capacity: Up to 2,048 PVCs and SVCs per port
• PPP Sessions: Up to 2,048 per port
• LANE Support: Up to 64 LAN Emulation Clients (LECs)
• Call Rate Capacity: Up to 800 calls per second per port; 32,000 calls per second maximum in 40-port ATM test suite
• VCC Capacity: Up to 8.38 million VCCs per port; 335.54 million VCCs maximum in 40-port configuration
• Protocol Support: ILMI, UNI 3.x, LAN Emulation Client 1.0, LLC/SNAP (RFC 1483), Classical IP (RFC 1577), PPP (RFCs 1661 and 2364)
– Key Features
• Full-duplex, full wire-rate frame-level testing
• Full-cell-rate switch testing
• High-rate signaling testing for edge devices
• SVC peak call rate and setup latency measurement in Smart Signaling
• End-to-end performance analysis for xDSL networks
– Typical Applications
• ATM network device validation and performance characterization
• Edge device and backbone testing
• Virtual circuit interworking verification
• Carrier-class signaling and call processing validation
– Compatibility & Integration
The AT9155Bs is a load module component within the Spirent Smartbits product family and integrates into Smartbits chassis platforms for multi-port traffic generation and analysis deployments.
