CHANGE-MANAGEMENT

The migration workbook: how I make risky network changes boring

About 900 Meraki access points migrated to sixteen Catalyst 9800 controllers — now running roughly 1,000 after density-driven additions — 190 WLANs across four regional datacenters, and an AAA migration to a parallel-built ISE 3.x environment nobody noticed. The method: audit first, pre-stage everything, cut over with the radios.