Data Link Control
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Data Link Control • Line Discipline • Flow Control • Error Control
description
Data Link Control. Line Discipline Flow Control Error Control. Figure 10-1. Functions of Data Link Layer. Figure 10-2. Figure 10-3. 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. - PowerPoint PPT Presentation
Transcript of Data Link Control
Data Link Control
• Line Discipline• Flow Control• Error Control
Functions of Data Link LayerFunctions of Data Link Layer
Figure 10-1
Figure 10-2
Figure 10-3
ENQ/ACKENQ/ACK
Figure 10-4
Figure 10-5
ENQ/ACKENQ/ACK
Multipoint DisciplineMultipoint Discipline
Figure 10-6
SelectSelectFigure 10-7
PollPollFigure 10-8
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
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
Stop and WaitStop and WaitFigure 10-10
Sliding WindowSliding Window
Figure 10-11
Figure 10-12
Sender Sliding WindowSender Sliding Window
Figure 10-13
Receiver Sliding WindowReceiver Sliding Window
Figure 10-14
Sliding Window ExampleSliding Window Example
Figure 10-14-continued
SenderSender
Figure 10-14-continued
ReceiverReceiver
Figure 10-15
Damaged FrameDamaged FrameFigure 10-16
Lost FrameLost FrameFigure 10-17
Lost ACKLost ACKFigure 10-18
Damaged FrameDamaged FrameFigure 10-19
Lost FrameLost FrameFigure 10-20
Lost ACKLost ACKFigure 10-21
Selective RejectSelective RejectFigure 10-22
Reference
Data Communications and Networking, 2nd ed.by Behrouz A. Forouzan
