Cisco Catalyst 3560CX-8PC-S
Wired core of the lab
A compact eight-port PoE switch running current firmware. It is the piece that makes the rest of the lab a network rather than a pile of boards, and it is where I intend to learn segmentation properly: separate VLANs for voice, staging, and a future NAS, with QoS applied where the voice path gives it a real reason to exist.
The point is not to collect IOS commands. I want to understand where the boundaries belong, what breaks when the policy is wrong, and how traffic behaves when services with very different needs share the same wire.