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(gawkinet.info)The TCP/IP Protocols

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The Internet Protocols
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   The Internet Protocol Suite (usually referred as just TCP/IP)(1)
consists of a number of different protocols at different levels or
"layers."  For our purposes, three protocols provide the fundamental
communications mechanisms.  All other defined protocols are referred to
as user-level protocols (e.g., HTTP, used later in this Info file).

Basic Protocols

The basic protocols.

Ports

The idea behind ports.

   ---------- Footnotes ----------

   (1) It should be noted that although the Internet seems to have
conquered the world, there are other networking protocol suites in
existence and in use.