A datacenter fabric diagram showing GPU racks connected via spine-leaf switches.

AI Networking: How GPUs, Fabrics, and Collective Operations Reshaped the Datacenter

AI workloads pushed the network to its limits. This post walks through the protocols, topologies, and failure modes that define modern AI networking — from RoCE and collective operations to fat-tree fabrics and packet-level telemetry.

September 5, 2026 · 9 min · 1915 words · martinuke0
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