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Layer 4 Features

Network Fundamentals / Ch. 6 - TCP/IP Transport, Applications, and Security

FunctionDescription
Multiplexing using ports Function that allows receiving hosts to choose 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 an 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.
Created by: k3ntucky