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Network Sales and Services Handbook by Matthew J. Castelli

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Chapter 3. TCP/IP Introduction

The following topics are covered in this chapter:

  • TCP/IP Model

  • TCP/IP Operation

  • TCP/IP Addressing

  • TCP/IP Ports and Sockets

  • UDP and ICMP

  • Routing

TCP/IP is a protocol suite developed to enable cooperating computers to share resources across a network. Some of the more common protocols in the suite are Internet Protocol (IP), Transmission Control Protocol (TCP), and User Datagram Protocol (UDP). There are other protocols in the TCP/IP suite used for specific tasks, such as transferring files between computers, sending mail, or determining who is logged in on another computer.

A common TCP/IP application is the sending and receiving of electronic mail (e-mail). The TCP/IP suite provisions for the handling of e-mail between hosts ...

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