Episodes
Every episode, in order.
Start at the top and work down — the series builds on itself. Each episode has its own page with the full description and chapter list, or you can watch everything on the YouTube channel.
The series
Welcome to Networking
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Episode 01 · 12:38
The Tour
Which layer is this problem at? One message travels down the layers, across the wire, and back up — and five identical "the internet is down" complaints get sorted by layer.
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Episode 02 · 12:46
Twisted Pair, Pin Outs, and Cable Categories
Why twisted-pair cable is twisted, T568A and T568B termination, and what a cable category actually specifies — the difference that stops you buying the wrong cable for the next ten years.
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Episode 03 · 11:23
The 100 Meter Rule and Careful Installation
One hundred meters is not a measurement — it is a budget: ninety meters in the walls, ten meters of patch cord shared between both ends. Plus the installation practices that make a run certify instead of mostly work.
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Episode 04 · 5:25
PoE Power Levels and Heat
On a full-length Type 4 run, ninety watts leave the switch and about seventy-one arrive. The missing nineteen become heat in the cable — now multiply by every powered run in the bundle.
Standalone episodes
One question, one episode.
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7:18
Shielded Twisted Pair: When You Need It, When You Do Not
Shielded cable costs more to buy, install, and maintain — and most buildings never need a single run. Where shielding is actually required, and why the rare runs that qualify deserve a certified installer.
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6:36
Making Your Own Network Cables, and the Crossover Story
Crimping your own cables looks frugal and usually is not. When the crimper still makes sense, solid versus stranded conductors, and the full story of the crossover cable — why it existed and why auto MDI-X made it obsolete.