Chapter 4: Network Access. Introduction to Networks v5.1

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1 Chapter 4: Network Access Introduction to Networks v5.1

2 4.0 Introduction 4.1 Physical Layer Protocols 4.2 Network Media 4.3 Data Link Layer Protocols 4.4 Media Access Control 4.5 Summary 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 2

3 Upon completion of this section, you should be able to: Identify device connectivity options. Describe the purpose and functions of the physical layer in the network. Describe basic principles of the physical layer standards Cisco and/or its affiliates. All rights reserved. Cisco Public 3

4 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 4

5 Home Router Connecting to the Wired LAN 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 5

6 Wired Connection Using an Ethernet NIC Connecting to the Wireless LAN with Range Extender 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 6

7 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 7

8 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 8

9 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 9

10 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 10

11 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 11

12 Manchester Encoding Modulation 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 12

13 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 13

14 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 14

15 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 15

16 Upon completion of this section, you should be able to: Identify the basic characteristics of copper cabling. Build a UTP cable used in Ethernet networks (scope does not include cabling area discussion). Describe fiber-optic cabling and its main advantages over other media. Connect devices using wired and wireless media Cisco and/or its affiliates. All rights reserved. Cisco Public 16

17 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 17

18 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 18

19 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 19

20 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 20

21 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 21

22 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 22

23 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 23

24 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 24

25 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 25

26 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 26

27 RJ-45 UTP Plugs RJ-45 UTP Socket 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 27

28 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 28

29 UTP Testing Parameters: Wire map Cable length Signal loss due to attenuation Crosstalk 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 29

30 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 30

31 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 31

32 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 32

33 Single Mode 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 33

34 Multimode 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 34

35 Fiber Optic Connectors 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 35

36 Common Fiber Patch Cords 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 36

37 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 37

38 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 38

39 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 39

40 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 40

41 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 41

42 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 42

43 Upon completion of this section, you should be able to: Describe the purpose and function of the data link layer in preparing communication for transmission on specific media Cisco and/or its affiliates. All rights reserved. Cisco Public 43

44 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 44

45 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 45

46 Layer 2 Data Link Address 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 46

47 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 47

48 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 48

49 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 49

50 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 50

51 Upon completion of this section, you should be able to: Compare the functions of logical topologies and physical topologies. Describe the basic characteristics of media access control methods on WAN topologies. Describe the basic characteristics of media access control methods on LAN topologies. Describe the characteristics and functions of the data link frame Cisco and/or its affiliates. All rights reserved. Cisco Public 51

52 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 52

53 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 53

54 Physical Topology 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 54

55 Logical Topology 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 55

56 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 56

57 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 57

58 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 58

59 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 59

60 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 60

61 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 61

62 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 62

63 Half-Duplex Communication Full-Duplex Communication 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 63

64 Contention-Based Access 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 64

65 Controlled Access 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 65

66 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 66

67 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 67

68 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 68

69 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 69

70 Frames have three basic parts: Header Data Trailer 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 70

71 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 71

72 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 72

73 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 73

74 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 74

75 Examples of Layer 2 protocols: Wireless Frame PPP Frame HDLC Frame Relay Ethernet Frame 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 75

76 Chapter Objectives: Explain how physical layer protocols and services support communications across data networks. Build a simple network using the appropriate media. Explain how the Data Link layer supports communications across data networks. Compare media access control techniques and logical topologies used in networks Cisco and/or its affiliates. All rights reserved. Cisco Public 76

77 Thank you.

1. What type of network cable is used between a terminal and a console port? cross-over straight-through rollover patch cable 2.

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