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Figure 3-2

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Figure 3-2. CSMA/CD. Figure 3-3. Ethernet layers. Figure 3-4. Ethernet frame. - PowerPoint PPT Presentation
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McGraw-Hill ©The McGraw-Hill Companies, Inc., 2000 Figure 3-2 CSMA/CD
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Page 1: Figure  3-2

McGraw-Hill ©The McGraw-Hill Companies, Inc., 2000

Figure 3-2

CSMA/CD

Page 2: Figure  3-2

McGraw-Hill ©The McGraw-Hill Companies, Inc., 2000

Figure 3-3

Ethernet layers

Page 3: Figure  3-2

McGraw-Hill ©The McGraw-Hill Companies, Inc., 2000

Figure 3-4

Ethernet frame

Page 4: Figure  3-2

McGraw-Hill ©The McGraw-Hill Companies, Inc., 2000

Transceivers

• Transceivers are used to connect nodes to the various Ethernet media. Most computers and network interface cards contain a built-in 10BASE-T or 10BASE2 transceiver, allowing them to be connected directly to Ethernet without requiring an external transceiver. Many Ethernet devices provide an AUI (Attachment Unit Interface ) connector to allow the user to connect to any media type via an external transceiver. The AUI connector consists of a 15-pin D-shell type connector, female on the computer side, male on the transceiver side. Thickwire (10BASE5) cables also use transceivers to allow connections

Page 5: Figure  3-2

McGraw-Hill ©The McGraw-Hill Companies, Inc., 2000

Figure 3-5:a

Ethernet implementation

Page 6: Figure  3-2

McGraw-Hill ©The McGraw-Hill Companies, Inc., 2000

The Original Ethernet The first Ethernet (10Base5) used a bus topology and a thick coaxial cable. Transceivers connect the network adapters to the cable via a vampire tap that "bites" into the coax.

Page 7: Figure  3-2

McGraw-Hill ©The McGraw-Hill Companies, Inc., 2000

Figure 3-5:b

Ethernet implementation

Page 8: Figure  3-2

McGraw-Hill ©The McGraw-Hill Companies, Inc., 2000

Thin Ethernet 10Base2 Ethernet was a later variation of the original 10Base5. It used a thinner coaxial cable attached to each node using BNC (bayonet Neil-Concelman) T-connectors

Page 9: Figure  3-2

McGraw-Hill ©The McGraw-Hill Companies, Inc., 2000

Figure 3-5:c

Ethernet implementation

Page 10: Figure  3-2

McGraw-Hill ©The McGraw-Hill Companies, Inc., 2000

Ethernet Switch This 10/100 switch from Omnitron has 16 ports and automatically senses the transmission rate of the line and adjusts accordingly

Twisted Pair Ethernet Most Ethernets use twisted pair wiring. All cables use RJ-45 connectors between the network adapters in the PC and a central hub or switch

Page 11: Figure  3-2

McGraw-Hill ©The McGraw-Hill Companies, Inc., 2000

Figure 3-5:d Ethernet implementation

Page 12: Figure  3-2

McGraw-Hill ©The McGraw-Hill Companies, Inc., 2000

Figure 3-6:a

Fast Ethernet implementation

Page 13: Figure  3-2

McGraw-Hill ©The McGraw-Hill Companies, Inc., 2000

Figure 3-6:b

Fast Ethernet implementation

Page 14: Figure  3-2

McGraw-Hill ©The McGraw-Hill Companies, Inc., 2000

Figure 3-6:c

Fast Ethernet implementation

Page 15: Figure  3-2

McGraw-Hill ©The McGraw-Hill Companies, Inc., 2000

Figure 3-7:a

Gigabit Ethernet implementation

Page 16: Figure  3-2

McGraw-Hill ©The McGraw-Hill Companies, Inc., 2000

Figure 3-7:b

Gigabit Ethernet implementation


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