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| Description: | Transmission Control Protocol. A protocol layer sitting on top of IP, offering reliable transfers between two endpoints. All major Internet protocols (telnet, FTP, SMTP, HTTP) use TCP for their transmission. Whereas the IP protocol deals only with packets, TCP enables two hosts to establish a connection and exchange streams of data. TCP guarantees delivery of data and also guarantees that packets will be delivered in the same order in which they were sent. The RFC for TCP is at http://www.ietf.org/rfc/rfc793.txt. |