Illustrated TCP/IP by Matthew G. Naugle Wiley Computer Publishing, John Wiley & Sons, Inc. ISBN: 0471196568   Pub Date: 11/01/98

Chapter 195
TCP Services

As noted earlier, the primary purpose of TCP is to provide reliable, securable logical circuit or connection service between pairs of processes. Providing this service on top of a less-reliable internet communications system requires facilities in the following areas, which are fully described in the next few sections:

•  Basic data transfer

•  Reliability

•  Flow control

•  Multiplexing

•  Connections

•  Precedence and security