Download
1 / 26
270 likes | 469 Vues
This document provides an overview of essential functions in the Data Link Layer, exploring key concepts such as line discipline, flow control, and error control. It includes detailed figures illustrating the ENQ/ACK protocol, multipoint discipline, polling mechanisms, and various flow control procedures like Stop and Wait and Sliding Window. The content is designed to enhance understanding of how data transmission is managed and the impact of errors on communication efficiency. Reference: "Data Communications and Networking," 2nd ed. by Behrouz A. Forouzan.
E N D
Data Link Control • Line Discipline • Flow Control • Error Control
Figure 10-1 Functions of Data Link Layer
Figure 10-4 ENQ/ACK
Figure 10-5 ENQ/ACK
Figure 10-6 Multipoint Discipline
Figure 10-7 Select
Figure 10-8 Poll
Figure 10-9 Flow control– set of procedures that tells the sender how much data it can transmit before it must wait for an acknowledgement from the receiver
Figure 10-10 Stop and Wait
Figure 10-11 Sliding Window
Figure 10-12 Sender Sliding Window
Figure 10-13 Receiver Sliding Window
Figure 10-14 Sliding Window Example
Figure 10-14-continued Sender
Figure 10-14-continued Receiver
Figure 10-16 Damaged Frame
Figure 10-17 Lost Frame
Figure 10-18 Lost ACK
Figure 10-19 Damaged Frame
Figure 10-20 Lost Frame
Figure 10-21 Lost ACK
Figure 10-22 Selective Reject
Reference Data Communications and Networking, 2nd ed.by Behrouz A. Forouzan
