Ethernet Maintains Market Lead in AI Back-end Networks Amid InfiniBand Surge, Dell'Oro Group Reports

ANET
October 08, 2025

A report from Dell'Oro Group indicates that InfiniBand switch sales in AI back-end networks experienced a surge in the second quarter of 2025. This highlights the rapid evolution and investment in specialized networking for artificial intelligence workloads.

Despite the rise in InfiniBand sales, Ethernet has successfully maintained its market lead in AI back-end networks. This is a notable achievement, considering Ethernet comprised less than 20% of this market just two years prior.

This market dynamic is significant for Arista Networks, a leader in Ethernet-based solutions. The continued dominance of Ethernet in AI back-end networks reinforces Arista's strategic focus and competitive advantage in providing high-performance, scalable networking for AI infrastructure.

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