Aries Interop

Extending interoperability leadership with PCIe® 6.x testing

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Enabling Seamless Plug-and-Play Interoperability

Reduce design challenges and accelerate time-to-market for AI servers

Rigorous testing of Aries Retimers with all major root complexes and 50+ endpoints
PCIe® robustness validated with varying channel insertion loss budgets in chip-to-chip, box-to-box, and rack-to-rack topologies
Extensive testing with software suite for advanced Link, Fleet, and RAS telemetry and diagnostics
Cloud-Scale Interop Lab expands to Taiwan to facilitate closer collaboration with ODMs and accelerate AI platform deployments

Why We Test

Extensive testing is required to ensure robust interoperability between the wide variety of PCIe 6.x components within an AI system deployed at cloud-scale.

How We Test

We test Aries Smart DSP Retimers with a broad variety of hosts and end points interconnected over varying channel insertion loss budgets in real systems over thousands of iterations.

Interop Bulletins

Interop Testing with 5th Gen Intel Xeon Scalable Processors

Astera Labs collaborated with Intel to unleash the full potential of 5th Gen Intel Xeon Scalable processors with PCIe® and CXL® solutions.

Interop Testing with 4th Gen AMD EPYC Processors

See how Aries Smart DSP Retimers with a 4th Gen AMD EPYC™ Processor unlocks the potential of multi-accelerator GPU servers, powering popular AI serv…

Deploy Robust PCIe® 5.0 Connectivity with Aries Smart Retimers

See our Aries Smart Retimers in action via two interoperability demonstrations with key industry partners’ PCIe® 5.0 root complex and endpoints.

Complex PCIe® Topologies with Switches, SRIS Clocking & Aries Smart Retimers

Learn about PCIe® switches and why certain complex system topologies involving switches need retimers to achieve optimal link performance.

Interop Testing for Enterprise NVMe SSD Deployments

Learn about some specific interop test cases required by our enterprise NVMe SSD customers.

Interop Testing for Popular Endpoints

Overview of some enterprise PCIe® 4.0 endpoints featured in the Aries PCIe Smart Retimer Interop Report and use cases that require unique test setups…

Systems and Test Suites Dedicated to Interop

Example Tests

PCIe® Loop Tests

Secondary Bus Reset
Forward Error Correct (FEC)
Link Retrain
EQ Redo
Speed Change
L1 PM
Warm Reboot
Low-power state (L0p)
Flow Control Unit (Flit)

Additional Tests

Hot Unplug/Plug
Power Cycle Tests
Lane Margining

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Combating Noisy Neighbors with Scorpio P-Series Fabric Switches

AI server designs are being impacted by an issue that becomes increasingly worse as GPUs scale to meet demands of AI workloads. The issue: noisy neighbors! Scorpio P-Series Fabric Switches – the industry’s first PCIe 6 fabric switch – are architected for mixed traffic AI head-node traffic connectivity (GPU-to-CPU/NIC/SSD). Let’s take a closer look at the problem of noisy neighbors…

Advancing CXL with Interoperable Solutions

In AI and cloud infrastructure, seamless connectivity and scalable memory expansion solutions are key to unlocking performance at scale. As AI workloads grow more demanding, the need for robust, standards-based and interoperable solutions is greater than ever. The CXL Consortium Compliance Program was established to validate end-products against the CXL Specification, ensuring they meet the…

Seven Key Innovations Shaping AI Connectivity Showcased at DesignCon 2025

Astera Labs will be at DesignCon 2025, taking place January 28-30 at the Santa Clara Convention Center, to showcase our latest chip, board, and system design innovations for AI and cloud infrastructure.Join us at Booth #755 to see our Intelligent Connectivity Platform of PCIe®, Ethernet, and CXL® connectivity solutions in action and learn how we are unleashing the full potential of…

Astera Labs Optimizes Connectivity for NVIDIA Blackwell-Based MGX Platforms at Scale

Seamless Scorpio Smart Fabric Switch integration with NVIDIA MGX™ platform delivers PCIe® 6-ready modular designs for rapid deployment across a range of AI serversSANTA CLARA, CA, U.S. – March 18, 2025 – Astera Labs, Inc. (Nasdaq: ALAB), a global leader in semiconductor-based connectivity solutions for AI and cloud infrastructure, today announced its Scorpio Smart Fabric Switches…

Astera Labs Expands Cloud-Scale Interop Lab Leadership to Propel Next-Gen PCIe 6.x Ecosystem

Comprehensive Cloud-Scale Interop Lab testing of Scorpio Smart Fabric Switches advances PCIe 6.x ecosystem enablement, fast-tracking customer platform designs, development, and time-to-marketSANTA CLARA, CA, U.S. – March 13, 2025 – Astera Labs, Inc. (Nasdaq: ALAB), a global leader in semiconductor-based connectivity solutions for AI and cloud infrastructure, today announced the expansion…

Astera Labs Appoints Dr. Craig Barratt to Board of Directors

Dr. Barratt brings leadership experience in scaling high-growth public and private technology companiesSANTA CLARA, CA, U.S. – March 3, 2025 – Astera Labs, Inc. (Nasdaq: ALAB), a global leader in semiconductor-based connectivity solutions for AI and cloud infrastructure, today announced the appointment of Dr. Craig Barratt to its Board of Directors. Dr. Barratt is a seasoned technology…

Astera Labs to Participate in the Morgan Stanley Technology, Media & Telecom Conference

SANTA CLARA, CA, U.S. – February 25, 2025 – Astera Labs (Nasdaq: ALAB), a global leader in semiconductor-based connectivity solutions for AI and cloud infrastructure, today announced that it will participate in the Morgan Stanley Technology, Media & Telecom Conference on March 4, 2025. Astera Labs’ presentation is scheduled for 4:05 pm PT. A webcast of the session will be made available…

End-to-End PCIe 6 Interop with NVIDIA Blackwell

In partnership with major hosts, GPU, network and storage ecosystem partners, we’re showing end-to-end interoperability with our Scorpio P-Series Fabric Switch, Aries Smart DSP Retimer, NVIDIA Blackwell GPU, 5th Gen Intel® Xeon® CPU, NVIDIA ConnectX-7 NIC, and a Micron PCIe 6 SSD for ecosystem enablement.

Optimizing NVIDIA MGX Platforms with Scorpio

At NVIDIA GTC 2025, Astera Labs is showcasing its collaboration with NVIDIA and Wistron. This is the first of many solutions using our Scorpio Smart Fabric Switches to deliver leading performance through a modular design that scales across different configurations for PCIe 6-ready NVIDIA Blackwell-based MGX platforms.For this demo, utilizing the PCIe 6-ready NVIDIA Blackwell-based MGX platform…

How We Test – Scorpio

Scorpio Smart Fabric Switches undergo interoperability and stress testing with a wide range of PCIe 6.x exercisers, analyzers, GPUs, CPUs, NICs, SSDs, and Switches across multiple PCIe generations and topologies.This rigorous testing enables customers to design with confidence, minimize interoperation risk, and reduce overall development time and costs.