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Chapter 10
Data Link Control
• Line Discipline
• Flow Control
• Error Control
WCB/McGraw-Hill © The McGraw-Hill Companies, Inc., 1998
Data Link Layer
Figure 10-1
WCB/McGraw-Hill © The McGraw-Hill Companies, Inc., 1998
Figure 10-2
WCB/McGraw-Hill © The McGraw-Hill Companies, Inc., 1998
Figure 10-3
WCB/McGraw-Hill © The McGraw-Hill Companies, Inc., 1998
ENQ/ACK
Figure 10-4
WCB/McGraw-Hill © The McGraw-Hill Companies, Inc., 1998
Figure 10-5
WCB/McGraw-Hill © The McGraw-Hill Companies, Inc., 1998
ENQ/ACK
Multipoint Discipline
Figure 10-6
WCB/McGraw-Hill © The McGraw-Hill Companies, Inc., 1998
Select
Figure 10-7
WCB/McGraw-Hill © The McGraw-Hill Companies, Inc., 1998
PollFigure 10-8
WCB/McGraw-Hill © The McGraw-Hill Companies, Inc., 1998
PollFigure 10-8
WCB/McGraw-Hill © The McGraw-Hill Companies, Inc., 1998

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DATA Link Control