Document the control and data planes
Collect topology, routing, VLANs, spanning tree, firewall policy, uplinks, power, software versions and monitoring coverage.
Find hidden dependencies
Static routes, unmanaged switches, printers, building systems, voice, CCTV and vendor appliances often create migration risk.
Design around failure domains
Core, distribution, access, wireless and internet-edge changes should be sequenced so rollback remains possible.
Need help applying this?
AL Group can assess, design, implement and operate the underlying technology rather than stopping at advice.
Talk to an engineer