An Introduction to the Internet Protocols

NELUG meeting 16/2/2000
Richard Mortimer


  • Internet connects millions of machines around the world.
  • Allows machines to find/talk to each other.
  • No one machine knows the whole of the network (knowledge is distributed).
  • Supports the “languages” (protocols) that various applications use to talk to each other – done in layers.
  • Example:
    protocol layer – http, ftp, nfs
    tcp udp
    ip icmp
    Hardware layer (ethernet, token ring, ppp)

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