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How Data TravelsComputer Networks

Finding a Route

Packets cross the planet without anyone knowing the whole map

Your message crosses oceans in a blink, passed between machines that have never seen a map of the internet. How does it arrive?

You'll find out

  • What a router actually knows
  • How routers learn where to send things
  • Why one bad rumor can hide a website

Why it matters

Every message, video and page you load is steered this way. It's why the internet survives cut cables and bad days.

About 3 min6 interactive slides · 5 questionsLesson 64 · Zone 8

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