Chapter 3 Underlying Technologies Mc GrawHill The Mc

Chapter 3 Underlying Technologies Mc. Graw-Hill ©The Mc. Graw-Hill Companies, Inc. , 2000

CONTENTS • LANS • POINT-TO-POINT WANS • SWITCHED WANS • CONNECTING DEVICES Mc. Graw-Hill ©The Mc. Graw-Hill Companies, Inc. , 2000

Figure 3 -1 Mc. Graw-Hill Internet model ©The Mc. Graw-Hill Companies, Inc. , 2000

3. 1 LOCAL AREA NETWORKS (LANS) Mc. Graw-Hill ©The Mc. Graw-Hill Companies, Inc. , 2000

Figure 3 -2 Mc. Graw-Hill CSMA/CD ©The Mc. Graw-Hill Companies, Inc. , 2000

Minimum frame length/Transmission rate is proportional to Collision domain / Propagation speed Mc. Graw-Hill ©The Mc. Graw-Hill Companies, Inc. , 2000

Figure 3 -3 Mc. Graw-Hill Ethernet layers ©The Mc. Graw-Hill Companies, Inc. , 2000

Figure 3 -4 Mc. Graw-Hill Ethernet frame ©The Mc. Graw-Hill Companies, Inc. , 2000

Figure 3 -5: a Mc. Graw-Hill Ethernet implementation ©The Mc. Graw-Hill Companies, Inc. , 2000

Figure 3 -5: b Mc. Graw-Hill Ethernet implementation ©The Mc. Graw-Hill Companies, Inc. , 2000

Figure 3 -5: c Mc. Graw-Hill Ethernet implementation ©The Mc. Graw-Hill Companies, Inc. , 2000

Figure 3 -5: d Mc. Graw-Hill Ethernet implementation ©The Mc. Graw-Hill Companies, Inc. , 2000

Figure 3 -6: a Mc. Graw-Hill Fast Ethernet implementation ©The Mc. Graw-Hill Companies, Inc. , 2000

Figure 3 -6: b Mc. Graw-Hill Fast Ethernet implementation ©The Mc. Graw-Hill Companies, Inc. , 2000

Figure 3 -6: c Mc. Graw-Hill Fast Ethernet implementation ©The Mc. Graw-Hill Companies, Inc. , 2000

Figure 3 -7: a Mc. Graw-Hill Gigabit Ethernet implementation ©The Mc. Graw-Hill Companies, Inc. , 2000

Figure 3 -7: b Mc. Graw-Hill Gigabit Ethernet implementation ©The Mc. Graw-Hill Companies, Inc. , 2000

Figure 3 -8: a Mc. Graw-Hill Token passing ©The Mc. Graw-Hill Companies, Inc. , 2000

Figure 3 -8: b Mc. Graw-Hill Token passing ©The Mc. Graw-Hill Companies, Inc. , 2000

Figure 3 -8: c Mc. Graw-Hill Token passing ©The Mc. Graw-Hill Companies, Inc. , 2000

Figure 3 -8: d Mc. Graw-Hill Token passing ©The Mc. Graw-Hill Companies, Inc. , 2000

Figure 3 -12 Mc. Graw-Hill ISM bands ©The Mc. Graw-Hill Companies, Inc. , 2000

Figure 3 -14 Mc. Graw-Hill ESS ©The Mc. Graw-Hill Companies, Inc. , 2000

3. 2 POINT-TO-POINT WANS Mc. Graw-Hill ©The Mc. Graw-Hill Companies, Inc. , 2000

Figure 3 -16 Mc. Graw-Hill Band for ADSL ©The Mc. Graw-Hill Companies, Inc. , 2000

Figure 3 -17 Mc. Graw-Hill PPP frame ©The Mc. Graw-Hill Companies, Inc. , 2000

3. 3 SWITCHED WANS Mc. Graw-Hill ©The Mc. Graw-Hill Companies, Inc. , 2000

3. 4 CONNECTING DEVICES Mc. Graw-Hill ©The Mc. Graw-Hill Companies, Inc. , 2000

Figure 3 -26 Mc. Graw-Hill Connecting devices ©The Mc. Graw-Hill Companies, Inc. , 2000

Figure 3 -27 Mc. Graw-Hill Repeater ©The Mc. Graw-Hill Companies, Inc. , 2000

A repeater connects segments of a LAN together. Mc. Graw-Hill ©The Mc. Graw-Hill Companies, Inc. , 2000

A repeater forwards every packet; it has no filtering capability. Mc. Graw-Hill ©The Mc. Graw-Hill Companies, Inc. , 2000

Figure 3 -28 Mc. Graw-Hill Hubs ©The Mc. Graw-Hill Companies, Inc. , 2000

A bridge has a table used in filtering decisions. Mc. Graw-Hill ©The Mc. Graw-Hill Companies, Inc. , 2000

Figure 3 -29 Mc. Graw-Hill Bridge ©The Mc. Graw-Hill Companies, Inc. , 2000

A bridge connects segments of a LAN together. Mc. Graw-Hill ©The Mc. Graw-Hill Companies, Inc. , 2000

A router is a three-layer (physical, data link, and network) device. Mc. Graw-Hill ©The Mc. Graw-Hill Companies, Inc. , 2000

A repeater or a bridge connects segments of a LAN. A router connects independent LANs or WANs to create an internetwork (internet). Mc. Graw-Hill ©The Mc. Graw-Hill Companies, Inc. , 2000

Figure 3 -30 Mc. Graw-Hill Routing example ©The Mc. Graw-Hill Companies, Inc. , 2000

A router changes the physical addresses in a packet. Mc. Graw-Hill ©The Mc. Graw-Hill Companies, Inc. , 2000