The Spirent PCG (Packet/Protocol Generation and Capture) is a versatile traffic generation and analysis platform engineered for testing network performance across TDM and IP domains. It generates, captures, and analyzes network traffic while supporting legacy voice circuits, modern signaling protocols, and contemporary data services. This platform serves engineers, system integrators, and test laboratories performing network diagnostics, protocol validation, and application delivery assessment.
Technical Specifications
TDM Circuit Support
• T1 circuits: 4, 14, or 21 full-duplex circuits at 1.544 Mbps; 24 channels per circuit; up to 672 total channels
• E1 circuits: 4, 14, or 21 full-duplex circuits at 2.048 Mbps; 30 channels per circuit; up to 630 total channels
Call Generation Capacity
• E1 PRI-ISDN: up to 607,975 calls per hour per subsystem
• T1 PRI-ISDN: up to 412,146 calls per hour per subsystem
• Programmable test durations: 1 second to indefinite
• Flexible call sequences and programmable call progress tones
Voice Quality Measurement
• PSQM, PSQM+, and PESQ analysis on individual calls
• MOS R-factor, PESQ-LQ, R-factor, and J-MOS calculations
• T.30 fax support up to 14.4 kbps; V.90 server data modem compatibility
Packet Stream Capabilities
• 8191 transmit streams and 16383 trackable receive streams
• Stream field variation enabling billions of unique flows
– Key Features
Protocol Support
• Signaling: SS7 (ANSI, ETSI/ITU-T, China, Japan), CAS, MF R1/R1.5/R2, ISDN PRI, GR-303, V5.1/V5.2
• IP: IPv4 and IPv6
• Encapsulation: 802.1Q and 802.1Q-in-Q
• Transport: TCP and UDP
• Applications: HTTP, SIP, FTP, Unicast/Multicast RTSP, RAW TCP
• Security: 802.1x authentication
Emulation and Switching
• Telephone exchange and terminal emulation
• TDM call generation and switching functionality
– Typical Applications
Network performance evaluation, security vulnerability assessment, application delivery validation, TDM-to-IP migration testing, voice quality assurance, fax interoperability verification, and protocol compliance validation.
– Compatibility & Integration
Supports PCM T1/E1 circuit testing with traditional PSTN infrastructure alongside modern IP-based networks. Operates within environments requiring concurrent TDM and IP traffic analysis.
