Load Balancing in AI Fabrics

Why ECMP fails on AI training traffic and what to do about it. The four LB tiers — SLB, DLB, GLB, TELB — with a live simulator to feel the difference.

→4.1 Load Balancing & ECMP

A network engineer's tutorial on the four LB tiers — SLB → DLB → GLB → TELB — why ECMP fails on AI traffic, the cheap fix, and what to pick at each scale.

→4.2 Load Balancing Playground

Interactive simulator — pick a load-balancing method, toggle between web traffic and AI training, and watch the four-spine fabric react. ECMP polarization, flowlet DLB rebalancing, packet spraying, link failure recovery — all visible at a glance.