Mais conteúdo relacionado Semelhante a 13 ethernet (20) 13 ethernet1. Chapter 12
Local Area Networks
• Project 802
• Ethernet
• Token Ring
• FDDI
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2. Figure 12-1
OSI Model and Project 802
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3. Logical Link Control (LLC) provides single data link
control protocol for all IEEE LANs while Media Access
Control (MAC) provides different protocols for different
LANs.
MAC contains synchronization, flag, flow and error
control specifications necessary to move information from
one place to another and the physical address of the next
station to reduce and route a packet.
4. Figure 12-2
Project 802
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5. Figure 12-3
PROTOCOL DATA UNIT(PDU)
Format
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6. Figure 12-4
PDU Control Field
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7. Figure 12-5
ETHERNET
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8. Figure 12-6
Evolution of CSMA/CD
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9. Figure 12-7
MAC Frame
PDU can be from 46 to 1500 bytes
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10. Figure 12-8
10BASE5- THICK ETHERNET
LAN Topology, Baseband signal, maximum segment length
500meters
Ethernet Segments
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13. Figure 12-10
Transceiver connection in 10Base5
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15. Figure 12-11-continued
10BASE2-THIN ETHERNET
LAN Topology, reduced cost, easy installation.
Shorter range, less capacity.
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17. Figure 12-12-continued
10BASET
Star topology LAN, maximum length 100meters
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21. Figure 12-15
Token Passing
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25. Figure 12-16
Token Ring Frame
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26. Figure 12-17
Data Frame Fields
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28. Figure 12-18
Token Ring
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29. Figure 12-19
Token Ring Switch
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30. Figure 12-20
MAU
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31. Figure 12-21
FDDI
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32. Figure 12-22
FDDI Example
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34. Figure 12-23
FDDI Encoding
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35. Figure 12-24
FDDI Layers
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36. Figure 12-25
FDDI Frames
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37. Figure 12-26
FDDI Rings
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38. Figure 12-27
FDDI Ring Failure
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39. Figure 12-28
FDDI Nodes
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