Toyo Technica Corporation (Headquarters: Chuo-ku, Tokyo; President and CEO: Toshiya Kono) will begin sales of the “TestCenter D2 1.6T Appliance,” a new model of the next-generation networkperformance tester “TestCenter” manufactured by VIAVI Solutions Inc. (Headquarters: Arizona, USA; President and CEO: Oleg Khaykin), on Wednesday, June 10, 2026.

This solution is an advanced test platform specifically designed for 1.6T (tera) class next-generation Ethernet networks running AI workloads. It enables comprehensive verification of network performance, reliability, and interoperability in the construction of increasingly high-speed data centers, AI infrastructure, and cloud environments. Toyo Technica will introducethis solution at “Interop Tokyo 2026,” which will be held at Makuhari Messe for three days starting Wednesday, June 10, 2026. This solution has also been nominated as a finalist for the “Best of Show Award” at “Interop Tokyo 2026”.

[Background/Summary]

In recent years, with the widespread adoption of AI, AI workloads have expanded rapidly, and next-generation cloud architectures have advanced. This has led to extremely high levels of performance, scalability, and reliability being required of networks used in hyperscale data centers and cloud data centers. In particular, AI backend infrastructure is seeing a significant increase in communication speeds from 400G and 800G to 1.6T, and the construction of large-scale, diverse AI clusters combining multiple complex, high-speed networks is progressing.

On the other hand, conventional network verification technologies are not sufficient to meet the performance and scalability requirements of AI and next-generation cloud environments, resulting in network bottlenecks and delays in service deployment. Against this backdrop, the importance of test solutions that can perform high-speed, large-scale network verification in advance, simulating actual operation in a multi-vendor environment, is increasing. Therefore, Toyo Technica has begun sales of the “TestCenter D2 1.6T Appliance,” designed for 1.6T class next-generation Ethernet networks, to achieve even higher speed and larger-scale network verification than before.

The “TestCenter D2 1.6T Appliance” enables comprehensive verification of performance, scalability, robustness, reliability, and interoperability in state-of-the-art high-speed Ethernet environments.

With scalable traffic handling capabilities and industry-leading traffic generation and analysis functions, it enables full-scale network verification, including AI workload emulation. This allows network equipment manufacturers, cloud providers, and data center operators to confidently deploy networks capable of handling the high-volume, high-load data communication demanded by AI-driven applications, while shortening development cycles and improving operational efficiency.

Toyo Technica will continue to contribute to the construction of next-generation communication networks by providing a variety of cutting-edge measurement solutions.

[Main Features]

– Compliant with IEEE 802.3dj 1.6TBASE-R, supporting 1x1600G, 2x800G, 4x400G, 8x200G in 224Gbps PAM4 mode, and also compliant with IEEE 802.3ck/802.3df 800GBASE-R, supporting 1x800G, 2x400G, 4x200G, 8x100G in 112Gbps PAM4 mode.

– A test appliance optimized for 1.6T class high-speed Ethernet networks running AI workloads. – Enables comprehensive verification of performance, scalability, robustness, reliability, and interoperability in multi-vendor environments.

Verification image diagram using “TestCenter D2 1.6T Appliance”.

– Provides extremely high traffic capacity, supporting full-scale network performance verification and AI workload emulation.

– Supports multi-rate operation (including 1.6T) compatible with next-generation network architectures.

– Designed for large-scale and real-world operation. Reproducible AI workloads, including libraries, are possible.

Network conditions are assessed in advance during development, verification, and deployment phases to reduce deployment risks.

Support for advanced optical modules and newly emerging interconnection technologies is enhanced, allowing for flexible adaptation to the evolving ecosystem.

[Comment from VIAVI]

Tom Faucett, Senior VicePresident and General Manager, Labs and Production, VIAVI Solutions Inc. Current validation technologies struggle to meet the unprecedented performance and scalability requirements demanded by AI and next-generation cloud architectures, resulting in bottlenecks and delays in service deployment. The introduction of the TestCenter D2 1.6T appliance will help resolve these challenges and provide customers with the confidence to deploy speed, reliability, and interoperability in new 1.6T class networks.

[Product Data]

• Product Name: TestCenter D2 1.6T Appliance
• Release Date: June 10, 2026 (Wednesday)
• Price: Please request a quote

[Interop Tokyo 2026 Exhibition Overview]

• Exhibition Name: Interop Tokyo 2026
• Dates: June 10th (Wed) – 12th (Fri), 2026, 10:00 – 18:00 (until 17:00 on the last day)
• Venue: Makuhari Messe (Toyo Technica Next Generation Communication Measurement Department, Booth Number: 4T20)
• Exhibition Announcement Page: https://www.toyo.co.jp/act/seminar/detail/interop_tokyo2026.html