Nexus Dashboard 4.2.1: What's Actually New for Fabric Operators

Cisco shipped Nexus Dashboard 4.2.1 in March 2026 with config drift reconciliation, a virtual Fabric Designer, Nexus One ACI/NX-OS interoperability, Live Protect, and deep AI fabric tooling. Here's a practitioner's breakdown of what changes day-to-day operations — and what's just nice to have.