VIAVI TestCenter SPT-N12U Mainframe Chassis

The VIAVI TestCenter SPT-N12U is a scalable, high-density mainframe chassis for 10G through 400G Ethernet testing, supporting more than 14 Tbps of test traffic and up to 576 Ethernet test ports.

  • Supports VIAVI TestCenter 10G, 40G, 100G, 200G, and 400G Ethernet testing configurations
  • Scales to more than 14 terabits of test traffic per second
  • Supports up to 576 × 10G/25G, 288 × 50G, 144 × 40G/100G, 48 × 200G, or 24 × 400G Ethernet ports per chassis
  • Provides precision timing and synchronization with IEEE 1588v2 connectivity and automatic chassis-to-chassis calibration
  • Includes intelligent power and fan control, an integrated LCD, fast startup, and simplified firmware and client-software access


VIAVI TestCenter provides a scalable network test platform that enables engineers to generate realistic traffic, emulate network protocols, validate interoperability, and measure performance under real-world operating conditions. Designed for development, quality assurance, and production environments, TestCenter helps identify performance bottlenecks, verify protocol compliance, and validate network resiliency before systems are placed into service.

Supporting technologies from traditional Ethernet networks to next-generation AI data center fabrics, the TestCenter platform delivers deterministic, repeatable test results that reduce deployment risk and accelerate product development. Extensive automation capabilities allow engineering teams to execute consistent test plans, simplify regression testing, and integrate network validation into continuous development workflows.

Whether validating Ethernet switches, routers, AI clusters, cloud infrastructure, or carrier networks, VIAVI TestCenter provides the performance, scalability, and flexibility required to verify today's most demanding network environments.


Key Capabilities

  • End-to-end network performance validation
  • Layer 2 through Layer 7 protocol testing
  • AI data center and GPU fabric validation
  • High-speed Ethernet testing from legacy speeds through 1.6 TbE
  • Traffic generation and protocol emulation
  • Performance benchmarking and latency analysis
  • Multi-vendor interoperability testing
  • Network resiliency and failover validation
  • Cloud, virtual, and physical infrastructure testing
  • Test automation and API integration for repeatable workflows

More Product Information

VIAVI Communications/RF

VIAVI is a leading worldwide provider of highly specialized test and measurement equipment and microelectronic solutions. 

VIAVI Solutions is proud of our industry-leading network solutions for Telecommunications Service Providers, Equipment Manufacturers, Enterprises, and Entities in fields of Government and Avionics. VIAVI is consistently #1 or #2 in the markets we serve, including: Fiber, Cable, Access, Metro and Transport, RAN-to-Core, LandMobile and Military Radio and Nav/Comm and Transponder. We offer end-to-end network visibility and analytics that help build, test, certify, maintain, and optimize complex physical and virtual networks. 

Our optical specialty products division is renown for expertise in anticounterfeiting pigment materials, 3D Sensing, and optical filters – holding #1 positions in those markets as well. 

The pioneering spirit at VIAVI continues as we light the path to 5G with innovative test and measurement products, and lead the way with 3D sensing technology.

📡 Communications / RF

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Front view of the VIAVI TestCenter SPT-N12U mainframe chassis