Chapter 4 Network Access
- 1. Introduction to Networks v5.1 Chapter 4: Network Access Jupriyadi, S.Kom., M.T. July 2020
- 2. © 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 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
- 3. © 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 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.
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- 5. © 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 5 Home Router Connecting to the Wired LAN
- 6. © 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 6 Connecting to the Wireless LAN with Range Extender Wired Connection Using an Ethernet NIC
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- 12. © 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 12 Manchester Encoding Modulation
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- 16. © 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 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.
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- 27. © 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 27 RJ-45 UTP Plugs RJ-45 UTP Socket
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- 29. © 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 29 UTP Testing Parameters: • Wire map • Cable length • Signal loss due to attenuation • Crosstalk
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- 33. © 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 33 Single Mode
- 34. © 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 34 Multimode
- 35. © 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 35 Fiber Optic Connectors
- 36. © 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 36 Common Fiber Patch Cords
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- 43. © 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 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.
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- 46. © 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 46 Layer 2 Data Link Address
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- 51. © 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 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.
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- 54. © 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 54 Physical Topology
- 55. © 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 55 Logical Topology
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- 63. © 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 63 Half-Duplex Communication Full-Duplex Communication
- 64. © 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 64 Contention-Based Access
- 65. © 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 65 Controlled Access
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- 70. © 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 70 Frames have three basic parts: • Header • Data • Trailer
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- 74. © 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 74
- 75. © 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 75 Examples of Layer 2 protocols: • 802.11 Wireless Frame • PPP Frame • HDLC • Frame Relay • Ethernet Frame
- 76. © 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 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.
- 77. Thank you.