Calnex and VIAVI expand partnership to deliver end-to-end network and application performance validation for next-generation networks.

Calnex Solutions (LSE: CLX) expanded its partnership with VIAVI Solutions (VIAV) to combine network emulation and performance-testing technologies.

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Calnex Solutions (LSE: CLX) expanded its partnership with VIAVI Solutions (VIAV) to combine network emulation and performance-testing technologies. The combined test architecture brings together Calnex's SNE, SNE-X and SNE-Ignite with VIAVI's ONE LabPro, TestCenter and CyberFlood.

The companies expect the offering to let customers recreate network conditions and measure application performance before deployment across AI, data center, defense, satellite communications and enterprise markets. The expansion builds on an existing collaboration to test Open RAN products across protocol, signal and timing domains.

Key Terms

network emulation, open ran

2 terms

network emulation technical

"Calnex's unique network emulation portfolio"

Network emulation is a method of recreating the behavior of a computer network in a controlled environment by imposing the same delays, packet loss, bandwidth limits, jitter and routing conditions that would occur on a real network. It works by sending real application traffic through software or hardware tools that modify packets and timing to mimic specific network links or topologies, so developers and testers can observe how devices, applications or services perform under realistic conditions. Emulation reproduces network effects but not the full scale or randomness of an actual live network, so results are accurate for the modeled conditions but may not capture every variable present in production environments.

open ran technical

"comprehensive testing of Open RAN products"

Open RAN is an approach to building the radio part of mobile networks that breaks the system into standard, swappable pieces so equipment from different suppliers can fit together, like using Lego bricks instead of one molded toy. For investors, it can mean lower equipment costs, more supplier competition and faster innovation — but also potential integration and security risks that can affect telecom vendors, operators and capital spending plans.

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The combined portfolio will enable customers to recreate real-world network conditions, validate user experience and accelerate deployment for the AI, Data Center, Defense, Satcom and Enterprise markets

EDINBURGH, Scotland, Oct. 7, 2026 /PRNewswire/ -- Calnex Solutions Plc (Calnex) (LSE:CLX) today announced an expansion to its strategic partnership with VIAVI Solutions. Combining Calnex's unique network emulation portfolio (SNE, SNE-X and SNE-Ignite) and VIAVI's industry-leading L0-7 ONE LabPro™, TestCenter and CyberFlood solutions, the partnership offers realistic traffic generation, user emulation and network impairment technologies in a combined test architecture. 

The collective offering from Calnex and VIAVI will enable those working across the network infrastructure ecosystem to generate realistic application and user traffic, recreate real-world network conditions, and measure the resulting impact on network and application performance before deployment.

"Networks continue to evolve, and as technologies advance, so too does the complexity and diversity of the topologies supported by the infrastructure. This growing complexity places greater demands on pre-deployment testing, yet many validation environments still fail to mirror real-world network conditions, increasing the risk of performance issues after launch.  We are excited to expand our relationship with VIAVI to address this need for our customers across the AI, Data Center, Defense, Satcom and Enterprise sectors." said Graeme Urquhart, VP Sales, Calnex Solutions. "Combining our resources enables us to build on our strong industry relationships, drive sustainable growth, and deliver exceptional value to our customers by offering access to these leading technologies globally."

"The combination of realistic traffic generation and accurate network emulation delivers a powerful foundation for performance assurance," said Mark Bateman, Vice President, Sales and Channel, Lab and Production, VIAVI. "Together with Calnex, we are helping customers move beyond lab simulations to confidently validate how applications, services and networks will perform in production environments."

The expanded partnership builds on the companies' existing collaboration for the comprehensive testing of Open RAN products across the protocol, signal and timing domains, leveraging VIAVI's TM500, TeraVM and XEdge platforms and Calnex's Paragon-neo, SNE-Ignite and SNE-X.

About Calnex
CALNEX SOLUTIONS (LSE:CLX) Calnex Solutions gives companies the clarity, confidence and certainty to deliver high-performance networks and applications. 

We provide high-precision tools for testing synchronization, validating network performance and emulating real-world conditions, giving customers the clarity they need to launch their products with confidence.

For nearly 20 years we have been trusted by engineering teams across industries who build innovative infrastructure that can't afford to fail. Our global customers include BT, China Mobile, NTT, Ericsson, Nokia, Intel, Qualcomm, IBM and Meta. Founded in 2006, Calnex is headquartered in Linlithgow, Scotland, with additional locations in Belfast, Northern Ireland, Stevenage, England and California in the US, supported by sales teams in China and India. Calnex has a global network of partners, providing a worldwide distribution capability.

Learn more about Calnex at www.calnexsol.com.  Follow us on LinkedIn.

About VIAVI
VIAVI (NASDAQ: VIAV) is a global leader in test and measurement and optical technologies. Our test and measurement, and resilient position, navigation and timing solutions enable and secure critical infrastructure ranging from data center ecosystems and communication networks to military, aerospace, railway and first responder communications. In addition, we develop and advance technologies used in high-volume optical applications across anti-counterfeiting, consumer electronics, aerospace, industrial and automotive end markets.

Learn more about VIAVI at www.viavisolutions.com. 

For press enquiries contact
Lee Noble
Calnex Solutions
lee.noble@calnexsol.com

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SOURCE Calnex Solutions Plc