1. Chapter 3 OSI Model The model Functions of the layers
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2. OSI Model  The McGraw-Hill Companies, Inc., 1998 Figure 3-1
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3. OSI Layers  The McGraw-Hill Companies, Inc., 1998 Figure 3-2
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4. An Exchange Using the OSI Model
Figure 3-3
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5. Physical Layer  The McGraw-Hill Companies, Inc., 1998 Figure 3-4
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6. Data Link Layer  The McGraw-Hill Companies, Inc., 1998 Figure 3-5
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7. Data Link Layer Example
Figure 3-6
Data Link Layer Example
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8. Network Layer  The McGraw-Hill Companies, Inc., 1998 Figure 3-7
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