Accelerating Development, Lowering Cost, and Enabling In‑Field Validation Across the Product Lifecycle
Robust networks are built on rigorous testing. Before a switch or system ever makes it into a data center, it’s run through countless validation cycles to ensure performance, reliability, and scale. Traditionally, that’s meant racks of specialized test equipment, miles of cabling, and significant time and expense.
At Xsight Labs, we thought there had to be a better way.
Enter the Internal Traffic Generator (ITG): A built-in feature that makes every Xsight switch its own test lab.
The ITG is a silicon‑proven design embedded in every one of Xsight’s switch devices. It enables engineers to generate, shape, and measure traffic from within the switch, eliminating the need for external traffic appliances for a large portion of the bring‑up, validation, and production tests. By making test stimulus and measurement intrinsic to the switching device (and portable across simulation, emulation, and silicon), the ITG shortens development cycles, reduces CapEx and OpEx, and enables repeatable, early, and at-scale testing.
As an example, because of the X2 ITG capabilities, our own development teams avoid purchasing dedicated traffic generators, saving millions of dollars in capital costs across development boards, while delivering testing capabilities equivalent to what would have required tens of millions of dollars in external hardware. Operationally, this also translates to meaningful energy and maintenance savings: for our own environment, eliminating around 50 high-power servers (roughly 50 kW) that would otherwise consume over $50,000 in electricity annually, not to mention reduced cooling and lab management overhead. Depending on the size of the system and the number of boards under test, organizations could see even larger CapEx and OpEx savings. And ITG seamlessly integrates with Xsight’s software ecosystem (including SONiC‑based deployments) and is available on X2 and all its platforms.
Innovation, Built Right Into the Silicon
The ITG isn’t an add-on, it’s part of every Xsight switch device. This enables development teams to initiate testing earlier in the development process and continue validating performance throughout the product’s lifecycle, from the first simulation to in-field systems.
By moving test generation inside the chip, Xsight’s ITG helps organizations:
- Reduce costs by minimizing reliance on external traffic generators and complex lab setups. Conventional switch validation relies on high‑end traffic generators, complex cabling, optics, and sizable lab footprints. The ITG moves much of that capability on‑chip, reducing external equipment purchases, setup time, power draw, and lab complexity.
- Speed development by allowing the same test scenarios to run seamlessly across simulation, emulation, and real hardware. The same ITG‑based test scenarios can be authored once and reused across simulation, multiple emulation platforms (on‑prem and in the cloud), and first‑silicon boards, preserving intent and dramatically improving reproducibility. This cross‑platform reusability aligns with Xsight’s broader initiative of opening the X‑Switch ISA (XISA) and publishing executable examples, which can be validated with ITG early and often.
- Increase reliability through consistent, repeatable testing that reduces human error and lab variability. Because traffic originates inside the switch and can be steered per port, per flow, or across many ports, scale tests no longer demand racks of testers and cabling. The lab team can wire once and exercise many topologies and traffic matrices using the ITG alone, improving throughput of nightly regressions and reducing the risk of testbed drift.
In other words: less hardware, less hassle, faster time to market.
From the Lab to the Field and Beyond…
What makes ITG especially powerful is its reach across the entire product journey:
- Before hardware exists, engineers can define and validate test cases in simulation.
- When silicon arrives, they can bring up new boards even before all external ports are connected.
- In production, ITG enables quick, automated checks without external equipment.
- In the field, it allows for self-tests after software updates or configuration changes, ensuring consistent performance long after deployment.
That continuity creates a single, unified workflow, one that’s faster, leaner, and more predictable at every stage. Let’s take this to the far edge where power and space are severely constrained. The X2 ITG functionality eliminates the need for external test equipment enabling highly reliable deployments at the edge.
Seamless Integration, Real-World Impact:
- Per‑port control: On each front‑panel port, choose internal (ITG‑driven) or external traffic, enabling hybrid tests (some ports cabled, others driven internally).
- Flexible traffic patterns: Configure port‑to‑port, many‑to‑many, and all‑to‑all patterns, as well as application‑like flows that mirror real deployments, with full rate control, up to 12.8Tbps.
- Integrated software environment: Runs within Xsight’s SONiC‑based software stack, alongside the X‑SDK, enabling scriptable control and integration with CI.
- Platform breadth: Available on Xsight’s X2 evaluation platforms and production systems.
- Deep Visibility: Gain real-time visibility into flow-level insights, port analytics, and residence latency stats.
ITG extends beyond hardware validation by empowering teams to deliver better software, firmware, and network reliability without slowing down innovation.
Why It Matters
In a world where networks are growing more complex by the day, the ability to test early, often, and at scale is a competitive advantage. By embedding testing capabilities directly into our silicon, Xsight Labs helps customers bring products to market faster, lower operational costs, and build with confidence.
It’s a straightforward concept with powerful impact: When the network can test itself, innovation happens faster.
Watch the demo: Xsight Labs X2-12.8T: Internal Traffic Generator (ITG)