TCP Function Summary

Table 6-5 summarizes TCP functions.

Table 6-5 TCP Function Summary

Function

Description

Multiplexing

Function that allows receiving hosts to decide the correct application for which the data is destined, based on the port number

Error recovery (reliability)

Process of numbering and acknowledging data with Sequence and Acknowledgment header fields

Flow control using windowing

Process that uses window sizes to protect buffer space and routing devices

Connection establishment and termination

Process used to initialize port numbers and Sequence and Acknowledgment fields

Ordered data transfer and data segmentation

Continuous stream of bytes from upper-layer process that is "segmented" for transmission and delivered to upper-layer processes at the receiving device, with the bytes in the same order

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