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1-3Networks

Aug 28

๐Ÿ“Œ Complete before class

  • โ“Quiz 01 - Git
  • ๐Ÿ“š Ch 1 Context (19โ€“27)
Learning Objectives
  1. Run a traceroute on multiple websites and identify how many network hops, which geographic locations, and which companies the data passes through.
  2. Explain what โ€œthe cloudโ€ actually is in physical terms, including who owns the infrastructure data travels through.
  3. Compare traceroute results across a US site, an international site, and a personally-used site to identify patterns in network geography and ownership.

Open geotraceroute.com a browser-based traceroute that maps each network hop geographically.

Run a trace on 3 sites and note: how many hops, which cities/countries the data passes through, and which companies own those hops (look at the hostnames ae-3.r01.chrlncus.qwest.net tells you a lot).

Suggested targets to compare:

Discuss (last 5 min): What surprised you? The phrase โ€œthe cloudโ€ implies data lives somewhere abstract โ€” where does it actually live? Who owns the cables between those dots on the map?

๐Ÿ“Œ Homework