Open hardware and collaboration are the future of networking
As hyperscale data centers grow, demands for greater flexibility, programmability, and transparency in network hardware are pressing, especially for AI workloads, which generate unprecedented volumes of east-west traffic and require low latency for distributed training and inference. Traditional fixed-function switch architectures struggle to keep pace with the dynamic flow patterns of large-scale AI clusters, where bottlenecks can directly translate into longer training times, poor model throughput and higher costs.
Enter Xsight Labs’ groundbreaking X-Switch architecture: a platform purpose-built to meet the networking needs of the AI era. By embracing fully open design and community collaboration, X-Switch delivers the programmability and visibility operators need to optimize traffic flows, experiment with new congestion-control schemes, and dynamically optimize switching behavior as AI models and workloads scale.
A Bold Move: Fully Open Instruction Set Architecture (ISA)
On March 25, 2025, Xsight Labs unveiled its fully open ISA for the X-Series Ethernet Switch chips. X-ISA throws open the "black box" of traditional switch silicon, allowing full insight and control over the underlying instruction set.
This open-source approach empowers customers, developers, and partners to access comprehensive documentation, tools, and enablement from the ground up. It’s a radical departure from the vendor-locked, opaque architectures that have long dominated the industry Xsight Labs.
Programmability Meets Performance
We built a switch architecture designed for finely tuned programmability, efficiency, and scalability, all without compromising on power, latency or performance. The open ISA supports advanced packet-processing accelerators, elastic resource allocation, parallel execution, and intelligent memory management delivering line-rate processing even under complex workloads.
Instead of rigid, stage-based fixed packet processing that can stall or recirculate under high load, X-Switch uses a “run-to-completion” execution model, gracefully degrading performance under heavy instruction loads rather than dropping throughput dramatically. It’s smart technology to ensure your network is always performing.
Driving Innovation and Ecosystem Collaboration
It takes a village and taking community engagement seriously ensures success. We are setting up open working groups and offering full transparency over the ISA. Through our open ecosystem we are boosting innovation from both vendors and end users to ensure we build the best products on the market.
This philosophy echoes the Open Compute Project’s (OCP) core values: building open, collaborative, disaggregated hardware ecosystems that scale performance while lowering total cost of ownership. Like OCP, Xsight Labs prioritizes open hardware design, interoperability, and cooperative development.
As Andy Fingerhut, Chair of the P4 Consortium Technical Steering Team, noted: “opening the X-Switch ISA invites development of new P4 compilers and collaborative enhancements across the ecosystem.”
Open Matters, Especially for AI
The Open Compute Project has long championed designs that are open by default, modular, and community-driven. Xsight Labs' open-ISA switch architecture fits squarely into this ethos:
- Open Hardware: Transparent ISA and architecture documentation echo OCP’s drive for publicly reviewable designs.
- Collaboration: Open working groups and shared tooling mirror how OCP fosters cross-industry innovation.
- Disaggregation: Our layered SDK enables customers to integrate at different levels of the software stack, giving them the flexibility to tailor solutions to their unique needs
AI adds a new dimension to why openness matters. Training large language models depends on thousands of GPUs working in sync, moving enormous datasets across the network at lightning speed. Bottlenecks at the switch level can waste compute cycles and drive up costs, while even small gains in throughput or latency optimization can translate into dramatic improvements in training efficiency. With X-Switch’s open ISA, developers and operators gain the ability to tune congestion-control algorithms, customize traffic engineering, and build AI-aware networking features tailored to the unique communication patterns of distributed AI clusters.
Xsight Labs is redefining switch architecture in a bold way: by combining unprecedented openness (open ISA, ecosystem participation) with hardware-level programmability and performance. Through X-Switch, we don’t just talk open, we build it, offering a foundational platform that organizations aligned with OCP’s vision can adopt, customize, and contribute to.
We are excited to join customers and partners at the OCP Global Summit next month in San Jose, stop by Booth #C70 to chat with us about how we can collaborate to continue building an open, AI-ready future.