The TCP/IP Protocol Suite
Quite often, TCP/IP is referred to as a network protocol, although that's not entirely accurate. Like IPX/SPX and AppleTalk, TCP/IP is actually a protocol suite comprised of many separate protocolseach of which has its own purpose and function. Combined, they all provide the TCP/IP functionality. The following list contains some of the more well-known protocols found within the TCP/IP protocol suite:
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Address Resolution Protocol (ARP)
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File Transfer Protocol (FTP)
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Internet Control Message Protocol (ICMP)
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Internet Protocol (IP)
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Reverse Address Resolution Protocol (RARP)
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Simple Mail Transfer Protocol (SMTP)
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Transmission Control Protocol (TCP)
This is just an introduction to the protocols found within the TCP/IP protocol suite.