About this interactive
The lesson's college campus, drawn twice:
- **Physical diagram:** how things are physically set up and interconnected. A Layer 3 switch in the main building, switches in Buildings A, B and C, the cables between them, and a wireless bridge to the annex because a cable there cost too much.
- **Logical diagram:** how the data flows. The administration, operations, sales and server networks, and which computer belongs to which. VLANs split the machines into these networks, so two computers side by side can be on different networks, and computers in different buildings on the same one.
Ask: is this about where something is and how it is cabled, or about which network it is on and who it can talk to?
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