Chapter 13 - Internet: A Network Of Networks

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Chapter 13 - Internet A Network Of Networks

• Introduction
• Network Technologies Are Incompatible
• Coping With Incompatibility
• It is impractical, and may be economically
  infeasible, to require all computers in an
  enterprise to use the same network technology.
• Two Fundamental Concepts
• A Connection to a Network can be Extended
  (dial-up modem connection, dedicated modem
  connection, digital connection)
• A Computer Can Have Multiple Connections
  (multiple NICs)

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Chapter 13 - Internet A Network Of Networks

• Using A Computer To Interconnect Networks
• Computers that interconnect networks are
  dedicated to the interconnection task. Although
  they use conventional hardware, they run
  special-purpose software that starts
  automatically when the system is powered on and
  remains operating at all times.
• Interconnecting Computers Pass Packets
• Interconnecting Computers Are Called Routers
  (Gateways)
• Routers Are The Building Blocks Of The Internet
• The Internet is not a conventional computer
  network. It consists of thousands of computer
  networks interconnected by dedicated
  special-purpose compters called routers.

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Chapter 13 - Internet A Network Of Networks

• Routers Accommodate Multiple Types Of Networks
• Routers Can Interconnect WANs and LANs
• Interconnecting Networks Was Revolutionary
• Terms
• fiber
• network of networks
• route
• router
• routing