Dell'Oro Group: AI Back-End Network Switch Sales Surpass Front-End Networks
Dell'Oro Group reports that in 2Q 2026, AI back-end network switch sales surpassed front-end sales for the first time. Ethernet led in back-end networks, with Celestica, NVIDIA, Arista, and Cisco as top vendors. 800 Gbps switches dominated shipments, and 1.6 Tbps sampling began. The shift has significant implications for vendor positioning and market share, with supply constraints expected to persist.
How this was made
The 30-second read
Why it matters
The data reshapes expectations for networking vendors as AI workloads shift toward back‑end infrastructure, influencing revenue forecasts and investment theses.
Market read
First‑time AI back‑end switch sales surpass front‑end, indicating a structural shift that may re‑price networking stocks.
What to watch
Potential impact of emerging 800 Gbps and 1.6 Tbps switch rollouts on future market dynamics.
Background
Dell'Oro Group's quarterly data center switch report provides the first public snapshot of AI back‑end network sales for 2Q 2026.
Ticker impact
NVIDIA ranked second in Ethernet AI back‑end switch sales for 2Q 2026.
Neutral to modest upside; already priced in AI hardware leadership.
New market‑share data but no surprise relative to existing expectations.
Arista placed third in Ethernet AI back‑end switch sales for 2Q 2026.
Limited impact; market likely already aware of Arista's role.
Incremental data without a material shift in ranking.
Cisco gained the most share and ranked fourth in Ethernet AI back‑end switch sales for 2Q 2026.
Minor effect; share gain may be offset by broader market dynamics.
Share increase noted but not a decisive change in market hierarchy.
Market effects
Highlights rapid growth of AI back‑end networking, may shift capital allocation toward vendors with strong Ethernet AI offerings.
U.S. networking vendors benefit; Canadian Celestica gains visibility in U.S. markets.
Signals broader AI infrastructure demand, relevant for global hardware supply chains.
Counterpoint
Growth may be overstated; supply constraints could limit near‑term revenue upside.
Key entities
- Research FirmDell'Oro Group
Provider of market data for telecom and data‑center equipment.
- CompanyCelestica Inc.
Canadian electronics manufacturing services firm.
- CompanyNVIDIA Corp.
U.S. AI and graphics hardware leader.
- CompanyArista Networks Inc.
U.S. cloud networking equipment provider.
- CompanyCisco Systems Inc.
U.S. networking and communications technology giant.
