Spine-Leaf Architecture in 2026: Design Rules, Bottlenecks, and Switch Selection
TL;DR - 2026 Key Takeaways
Spine-leaf remains the default DC fabric in 2026 because it scales predictably with ECMP and repeatable "pods."
The biggest performance failures rarely start at the server port-they start in uplink sizing, oversubscription, congestion behavior, and opera...