Internet Characteristics Overview

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Internet Characteristics Overview

• Seminar 37-310
• Polly Huang
• huang_at_tik.ee.ethz.ch
• March 28, 2000

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Why do we care?

• The Internet is growing fast
• And almost everywhere

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Growing Fast End Hosts
4
Growing Fast Backbone Routers
Telstra, http//www.telstra.net/ops/bgptable.html
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Locality almost everywhere!
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Towards a Better Internet
design
better
Experts intuition Some evaluation
better
Internet
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Must Understand the Internet!!
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Who cares?

• Researchers
• Backbone providers or Internet Service Providers
  (ISPs)

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Internet on Mars
Vint Cerf, http//www.spaceref.com/ipn/03.01.2000.
cerf/
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Providers Nightmare

• Software upgrade sparked ATT outage
• Matt Hamblen, Computaerworld Enterprise Network
  news, April 22, 1998
• ATTs frame-relay network customers will
  receive rebates for nearly two weeks of service
• Two weeks revenue amounts to less than 40
  million

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What are already known?

• Network Topology
• Nature of Internet Traffic
• Scaling Phenomena

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Network Topology

• Connectivity
• Bandwidth

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Nature of Internet Traffic

• Failure of Poisson
• User behavior and system characteristics

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Scaling Phenomena

• Packet vs. flow level characteristics
• Local vs. wide area characteristics

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Exactly what and howdid they find out?
Stick around! Well see
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Beneficial for all

• academic and industrial tracks
• engineer and scientist types