Cisco's AI Networking Boom Is a Signal for Nvidia
$Cisco(CSCO)$
This matters for $NVIDIA(NVDA)$
Cisco's quarter: the key numbers
$Cisco (CSCO.US)$ delivered record Q3 revenue of $15.8 billion, up 12% year over year. Product revenue grew 17%, driven by AI infrastructure and campus networking. Total product orders rose 35%, and even excluding hyperscalers, product orders still grew 19%.
The strongest signal came from networking. Cisco said networking product orders grew more than 50%, marking the seventh straight quarter of double-digit growth for the networking portfolio.
The AI order data was even more important. Cisco took $1.9 billion of hyperscaler AI infrastructure orders in Q3, versus $600 million a year earlier. FY26 year-to-date hyperscaler AI orders reached $5.3 billion, already above its prior full-year target of $5 billion. Cisco now expects about $9 billion of FY26 hyperscaler AI orders and roughly $4 billion of FY26 hyperscaler AI revenue.
Acacia also had its strongest quarter ever, with more than $1 billion of orders. Cisco expects Acacia to grow more than 200% year over year in FY26, showing that coherent optics are becoming a core part of AI infrastructure, not just a supporting component.
What this means for AI networking hardware
The message is simple: once AI clusters grow, the bottleneck shifts from compute to communication.
That creates demand across three layers: scale-out networking inside AI data centers, optical interconnects for bandwidth and distance, and scale-across networking that links multiple AI data centers into larger logical clusters.
Cisco's Silicon One P200 design wins are especially important. They are Cisco's first major scale-across wins, and management said a third hyperscaler P200 win came early in the current quarter. That suggests hyperscalers are already planning AI workloads that cannot fit inside a single data center.
The main risk is margin. Cisco's non-GAAP product gross margin fell to 64.3%, down 330 basis points, mainly due to product mix and higher memory costs. AI networking demand is real, but it still has to convert into profitable revenue.
What this means for Nvidia earnings
$NVIDIA (NVDA.US)$ reports fiscal Q1 2027 results on May 20, 2026. Cisco's quarter raises the importance of Nvidia's networking line.
Nvidia's Q4 FY26 revenue was $68.1 billion, and non-GAAP gross margin was 75.2%. Its networking business was already one of the fastest-growing parts of the company, with Q4 networking revenue around $11 billion.
For Nvidia's upcoming report, the key question is not only whether GPU demand remains strong. The bigger question is whether Nvidia can show continued momentum in NVLink, InfiniBand, Spectrum-X Ethernet, SuperNICs, BlueField DPUs, and scale-across networking.
Summary
Cisco just confirmed that AI networking demand is accelerating outside Nvidia's own reported numbers. That is bullish for Nvidia's networking TAM.
The test for Nvidia is whether it can turn that industry-wide demand into another quarter of outsized networking growth while defending its premium margin profile.
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