Leaf-Spine vs Traditional 3-Tier Architecture: Which is Right for Your Data Center?
Executive Summary (TL;DR)
Traditional 3-Tier (Core-Aggregation-Access): Designed for legacy "North-South" traffic (client-to-server). It relies on Spanning Tree Protocol (STP), which blocks redundant links, creating severe bandwidth bottlenecks.
Leaf-Spine Architectur...