chapter 3: network protocols and...
TRANSCRIPT
![Page 1: Chapter 3: Network Protocols and Communicationsmars.tekkom.dk/mediawiki/images/e/e5/ITNv51_InstructorPPT_CH3.pdfIntroduction to Networks v5.1 Chapter 3: Network Protocols and Communications](https://reader031.vdocuments.net/reader031/viewer/2022030506/5ab47c5f7f8b9adc638c2023/html5/thumbnails/1.jpg)
Introduction to Networks v5.1
Chapter 3:
Network Protocols and
Communications
![Page 2: Chapter 3: Network Protocols and Communicationsmars.tekkom.dk/mediawiki/images/e/e5/ITNv51_InstructorPPT_CH3.pdfIntroduction to Networks v5.1 Chapter 3: Network Protocols and Communications](https://reader031.vdocuments.net/reader031/viewer/2022030506/5ab47c5f7f8b9adc638c2023/html5/thumbnails/2.jpg)
© 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 2
3.0 Introduction
3.1 Rules of Communication
3.2 Network Protocols and Standards
3.3 Data Transfer in the Network
3.4 Summary
![Page 3: Chapter 3: Network Protocols and Communicationsmars.tekkom.dk/mediawiki/images/e/e5/ITNv51_InstructorPPT_CH3.pdfIntroduction to Networks v5.1 Chapter 3: Network Protocols and Communications](https://reader031.vdocuments.net/reader031/viewer/2022030506/5ab47c5f7f8b9adc638c2023/html5/thumbnails/3.jpg)
© 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 3
Upon completion of this section, you should be able to:
• Describe the types of rules that are necessary to successfully communicate.
![Page 4: Chapter 3: Network Protocols and Communicationsmars.tekkom.dk/mediawiki/images/e/e5/ITNv51_InstructorPPT_CH3.pdfIntroduction to Networks v5.1 Chapter 3: Network Protocols and Communications](https://reader031.vdocuments.net/reader031/viewer/2022030506/5ab47c5f7f8b9adc638c2023/html5/thumbnails/4.jpg)
Cisco Public© 2013 Cisco and/or its affiliates. All rights reserved. 4
![Page 5: Chapter 3: Network Protocols and Communicationsmars.tekkom.dk/mediawiki/images/e/e5/ITNv51_InstructorPPT_CH3.pdfIntroduction to Networks v5.1 Chapter 3: Network Protocols and Communications](https://reader031.vdocuments.net/reader031/viewer/2022030506/5ab47c5f7f8b9adc638c2023/html5/thumbnails/5.jpg)
© 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 5
Human Communication
![Page 6: Chapter 3: Network Protocols and Communicationsmars.tekkom.dk/mediawiki/images/e/e5/ITNv51_InstructorPPT_CH3.pdfIntroduction to Networks v5.1 Chapter 3: Network Protocols and Communications](https://reader031.vdocuments.net/reader031/viewer/2022030506/5ab47c5f7f8b9adc638c2023/html5/thumbnails/6.jpg)
© 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 6
Computer Communication
![Page 7: Chapter 3: Network Protocols and Communicationsmars.tekkom.dk/mediawiki/images/e/e5/ITNv51_InstructorPPT_CH3.pdfIntroduction to Networks v5.1 Chapter 3: Network Protocols and Communications](https://reader031.vdocuments.net/reader031/viewer/2022030506/5ab47c5f7f8b9adc638c2023/html5/thumbnails/7.jpg)
© 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 7
![Page 8: Chapter 3: Network Protocols and Communicationsmars.tekkom.dk/mediawiki/images/e/e5/ITNv51_InstructorPPT_CH3.pdfIntroduction to Networks v5.1 Chapter 3: Network Protocols and Communications](https://reader031.vdocuments.net/reader031/viewer/2022030506/5ab47c5f7f8b9adc638c2023/html5/thumbnails/8.jpg)
© 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 8
![Page 9: Chapter 3: Network Protocols and Communicationsmars.tekkom.dk/mediawiki/images/e/e5/ITNv51_InstructorPPT_CH3.pdfIntroduction to Networks v5.1 Chapter 3: Network Protocols and Communications](https://reader031.vdocuments.net/reader031/viewer/2022030506/5ab47c5f7f8b9adc638c2023/html5/thumbnails/9.jpg)
© 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 9
![Page 10: Chapter 3: Network Protocols and Communicationsmars.tekkom.dk/mediawiki/images/e/e5/ITNv51_InstructorPPT_CH3.pdfIntroduction to Networks v5.1 Chapter 3: Network Protocols and Communications](https://reader031.vdocuments.net/reader031/viewer/2022030506/5ab47c5f7f8b9adc638c2023/html5/thumbnails/10.jpg)
© 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 10
![Page 11: Chapter 3: Network Protocols and Communicationsmars.tekkom.dk/mediawiki/images/e/e5/ITNv51_InstructorPPT_CH3.pdfIntroduction to Networks v5.1 Chapter 3: Network Protocols and Communications](https://reader031.vdocuments.net/reader031/viewer/2022030506/5ab47c5f7f8b9adc638c2023/html5/thumbnails/11.jpg)
© 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 11
![Page 12: Chapter 3: Network Protocols and Communicationsmars.tekkom.dk/mediawiki/images/e/e5/ITNv51_InstructorPPT_CH3.pdfIntroduction to Networks v5.1 Chapter 3: Network Protocols and Communications](https://reader031.vdocuments.net/reader031/viewer/2022030506/5ab47c5f7f8b9adc638c2023/html5/thumbnails/12.jpg)
© 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 12
Example: Personal letter contains the following elements:
• An identifier of the recipient
• A salutation or greeting
• The message content
• A closing phrase
• An identifier of the sender
![Page 13: Chapter 3: Network Protocols and Communicationsmars.tekkom.dk/mediawiki/images/e/e5/ITNv51_InstructorPPT_CH3.pdfIntroduction to Networks v5.1 Chapter 3: Network Protocols and Communications](https://reader031.vdocuments.net/reader031/viewer/2022030506/5ab47c5f7f8b9adc638c2023/html5/thumbnails/13.jpg)
© 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 13
![Page 14: Chapter 3: Network Protocols and Communicationsmars.tekkom.dk/mediawiki/images/e/e5/ITNv51_InstructorPPT_CH3.pdfIntroduction to Networks v5.1 Chapter 3: Network Protocols and Communications](https://reader031.vdocuments.net/reader031/viewer/2022030506/5ab47c5f7f8b9adc638c2023/html5/thumbnails/14.jpg)
© 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 14
Human Communication
![Page 15: Chapter 3: Network Protocols and Communicationsmars.tekkom.dk/mediawiki/images/e/e5/ITNv51_InstructorPPT_CH3.pdfIntroduction to Networks v5.1 Chapter 3: Network Protocols and Communications](https://reader031.vdocuments.net/reader031/viewer/2022030506/5ab47c5f7f8b9adc638c2023/html5/thumbnails/15.jpg)
© 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 15
Computer Communication
• The source host breaks a long message into individual pieces or frames that meet both the minimum and maximum size requirements.
• Each frame will also have its own addressing information.
• At the receiving host, the pieces are reconstructed to be processed and interpreted.
![Page 16: Chapter 3: Network Protocols and Communicationsmars.tekkom.dk/mediawiki/images/e/e5/ITNv51_InstructorPPT_CH3.pdfIntroduction to Networks v5.1 Chapter 3: Network Protocols and Communications](https://reader031.vdocuments.net/reader031/viewer/2022030506/5ab47c5f7f8b9adc638c2023/html5/thumbnails/16.jpg)
© 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 16
Rules of engagement:
• Access Method
• Flow Control
• Response Timeout
![Page 17: Chapter 3: Network Protocols and Communicationsmars.tekkom.dk/mediawiki/images/e/e5/ITNv51_InstructorPPT_CH3.pdfIntroduction to Networks v5.1 Chapter 3: Network Protocols and Communications](https://reader031.vdocuments.net/reader031/viewer/2022030506/5ab47c5f7f8b9adc638c2023/html5/thumbnails/17.jpg)
© 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 17
![Page 18: Chapter 3: Network Protocols and Communicationsmars.tekkom.dk/mediawiki/images/e/e5/ITNv51_InstructorPPT_CH3.pdfIntroduction to Networks v5.1 Chapter 3: Network Protocols and Communications](https://reader031.vdocuments.net/reader031/viewer/2022030506/5ab47c5f7f8b9adc638c2023/html5/thumbnails/18.jpg)
© 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 18
![Page 19: Chapter 3: Network Protocols and Communicationsmars.tekkom.dk/mediawiki/images/e/e5/ITNv51_InstructorPPT_CH3.pdfIntroduction to Networks v5.1 Chapter 3: Network Protocols and Communications](https://reader031.vdocuments.net/reader031/viewer/2022030506/5ab47c5f7f8b9adc638c2023/html5/thumbnails/19.jpg)
© 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 19
Upon completion of this section, you should be able to:
• Explain why protocols are necessary in communication.
• Explain the purpose of adhering to a protocol suite.
• Explain the role of standards organizations in establishing protocols for network interoperability.
• Explain how the TCP/IP model and the OSI model are used to facilitate standardization in the communication process.
![Page 20: Chapter 3: Network Protocols and Communicationsmars.tekkom.dk/mediawiki/images/e/e5/ITNv51_InstructorPPT_CH3.pdfIntroduction to Networks v5.1 Chapter 3: Network Protocols and Communications](https://reader031.vdocuments.net/reader031/viewer/2022030506/5ab47c5f7f8b9adc638c2023/html5/thumbnails/20.jpg)
Cisco Public© 2013 Cisco and/or its affiliates. All rights reserved. 20
![Page 21: Chapter 3: Network Protocols and Communicationsmars.tekkom.dk/mediawiki/images/e/e5/ITNv51_InstructorPPT_CH3.pdfIntroduction to Networks v5.1 Chapter 3: Network Protocols and Communications](https://reader031.vdocuments.net/reader031/viewer/2022030506/5ab47c5f7f8b9adc638c2023/html5/thumbnails/21.jpg)
© 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 21
![Page 22: Chapter 3: Network Protocols and Communicationsmars.tekkom.dk/mediawiki/images/e/e5/ITNv51_InstructorPPT_CH3.pdfIntroduction to Networks v5.1 Chapter 3: Network Protocols and Communications](https://reader031.vdocuments.net/reader031/viewer/2022030506/5ab47c5f7f8b9adc638c2023/html5/thumbnails/22.jpg)
© 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 22
• The role of protocols
• How the message is formatted or structured
• The process by which networking devices share information about pathways with other networks
• How and when error and system messages are passed between devices
• The setup and termination of data transfer sessions
![Page 23: Chapter 3: Network Protocols and Communicationsmars.tekkom.dk/mediawiki/images/e/e5/ITNv51_InstructorPPT_CH3.pdfIntroduction to Networks v5.1 Chapter 3: Network Protocols and Communications](https://reader031.vdocuments.net/reader031/viewer/2022030506/5ab47c5f7f8b9adc638c2023/html5/thumbnails/23.jpg)
© 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 23
Interaction of protocols in communication between a web server and web client.
![Page 24: Chapter 3: Network Protocols and Communicationsmars.tekkom.dk/mediawiki/images/e/e5/ITNv51_InstructorPPT_CH3.pdfIntroduction to Networks v5.1 Chapter 3: Network Protocols and Communications](https://reader031.vdocuments.net/reader031/viewer/2022030506/5ab47c5f7f8b9adc638c2023/html5/thumbnails/24.jpg)
Cisco Public© 2013 Cisco and/or its affiliates. All rights reserved. 24
![Page 25: Chapter 3: Network Protocols and Communicationsmars.tekkom.dk/mediawiki/images/e/e5/ITNv51_InstructorPPT_CH3.pdfIntroduction to Networks v5.1 Chapter 3: Network Protocols and Communications](https://reader031.vdocuments.net/reader031/viewer/2022030506/5ab47c5f7f8b9adc638c2023/html5/thumbnails/25.jpg)
© 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 25
![Page 26: Chapter 3: Network Protocols and Communicationsmars.tekkom.dk/mediawiki/images/e/e5/ITNv51_InstructorPPT_CH3.pdfIntroduction to Networks v5.1 Chapter 3: Network Protocols and Communications](https://reader031.vdocuments.net/reader031/viewer/2022030506/5ab47c5f7f8b9adc638c2023/html5/thumbnails/26.jpg)
© 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 26
![Page 27: Chapter 3: Network Protocols and Communicationsmars.tekkom.dk/mediawiki/images/e/e5/ITNv51_InstructorPPT_CH3.pdfIntroduction to Networks v5.1 Chapter 3: Network Protocols and Communications](https://reader031.vdocuments.net/reader031/viewer/2022030506/5ab47c5f7f8b9adc638c2023/html5/thumbnails/27.jpg)
© 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 27
![Page 28: Chapter 3: Network Protocols and Communicationsmars.tekkom.dk/mediawiki/images/e/e5/ITNv51_InstructorPPT_CH3.pdfIntroduction to Networks v5.1 Chapter 3: Network Protocols and Communications](https://reader031.vdocuments.net/reader031/viewer/2022030506/5ab47c5f7f8b9adc638c2023/html5/thumbnails/28.jpg)
© 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 28
Protocol Operation - Sending a Message
![Page 29: Chapter 3: Network Protocols and Communicationsmars.tekkom.dk/mediawiki/images/e/e5/ITNv51_InstructorPPT_CH3.pdfIntroduction to Networks v5.1 Chapter 3: Network Protocols and Communications](https://reader031.vdocuments.net/reader031/viewer/2022030506/5ab47c5f7f8b9adc638c2023/html5/thumbnails/29.jpg)
© 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 29
Protocol Operation – Receiving a Message
![Page 30: Chapter 3: Network Protocols and Communicationsmars.tekkom.dk/mediawiki/images/e/e5/ITNv51_InstructorPPT_CH3.pdfIntroduction to Networks v5.1 Chapter 3: Network Protocols and Communications](https://reader031.vdocuments.net/reader031/viewer/2022030506/5ab47c5f7f8b9adc638c2023/html5/thumbnails/30.jpg)
Cisco Public© 2013 Cisco and/or its affiliates. All rights reserved. 30
![Page 31: Chapter 3: Network Protocols and Communicationsmars.tekkom.dk/mediawiki/images/e/e5/ITNv51_InstructorPPT_CH3.pdfIntroduction to Networks v5.1 Chapter 3: Network Protocols and Communications](https://reader031.vdocuments.net/reader031/viewer/2022030506/5ab47c5f7f8b9adc638c2023/html5/thumbnails/31.jpg)
© 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 31
![Page 32: Chapter 3: Network Protocols and Communicationsmars.tekkom.dk/mediawiki/images/e/e5/ITNv51_InstructorPPT_CH3.pdfIntroduction to Networks v5.1 Chapter 3: Network Protocols and Communications](https://reader031.vdocuments.net/reader031/viewer/2022030506/5ab47c5f7f8b9adc638c2023/html5/thumbnails/32.jpg)
© 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 32
ISOC, IAM, IETF, and IRTF
![Page 33: Chapter 3: Network Protocols and Communicationsmars.tekkom.dk/mediawiki/images/e/e5/ITNv51_InstructorPPT_CH3.pdfIntroduction to Networks v5.1 Chapter 3: Network Protocols and Communications](https://reader031.vdocuments.net/reader031/viewer/2022030506/5ab47c5f7f8b9adc638c2023/html5/thumbnails/33.jpg)
© 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 33
IANA and ICANN
![Page 34: Chapter 3: Network Protocols and Communicationsmars.tekkom.dk/mediawiki/images/e/e5/ITNv51_InstructorPPT_CH3.pdfIntroduction to Networks v5.1 Chapter 3: Network Protocols and Communications](https://reader031.vdocuments.net/reader031/viewer/2022030506/5ab47c5f7f8b9adc638c2023/html5/thumbnails/34.jpg)
© 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 34
Institute of Electrical and Electronics Engineers (IEEE)
![Page 35: Chapter 3: Network Protocols and Communicationsmars.tekkom.dk/mediawiki/images/e/e5/ITNv51_InstructorPPT_CH3.pdfIntroduction to Networks v5.1 Chapter 3: Network Protocols and Communications](https://reader031.vdocuments.net/reader031/viewer/2022030506/5ab47c5f7f8b9adc638c2023/html5/thumbnails/35.jpg)
© 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 35
EIA/TIA Standards
![Page 36: Chapter 3: Network Protocols and Communicationsmars.tekkom.dk/mediawiki/images/e/e5/ITNv51_InstructorPPT_CH3.pdfIntroduction to Networks v5.1 Chapter 3: Network Protocols and Communications](https://reader031.vdocuments.net/reader031/viewer/2022030506/5ab47c5f7f8b9adc638c2023/html5/thumbnails/36.jpg)
Cisco Public© 2013 Cisco and/or its affiliates. All rights reserved. 36
![Page 37: Chapter 3: Network Protocols and Communicationsmars.tekkom.dk/mediawiki/images/e/e5/ITNv51_InstructorPPT_CH3.pdfIntroduction to Networks v5.1 Chapter 3: Network Protocols and Communications](https://reader031.vdocuments.net/reader031/viewer/2022030506/5ab47c5f7f8b9adc638c2023/html5/thumbnails/37.jpg)
© 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 37
![Page 38: Chapter 3: Network Protocols and Communicationsmars.tekkom.dk/mediawiki/images/e/e5/ITNv51_InstructorPPT_CH3.pdfIntroduction to Networks v5.1 Chapter 3: Network Protocols and Communications](https://reader031.vdocuments.net/reader031/viewer/2022030506/5ab47c5f7f8b9adc638c2023/html5/thumbnails/38.jpg)
© 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 38
![Page 39: Chapter 3: Network Protocols and Communicationsmars.tekkom.dk/mediawiki/images/e/e5/ITNv51_InstructorPPT_CH3.pdfIntroduction to Networks v5.1 Chapter 3: Network Protocols and Communications](https://reader031.vdocuments.net/reader031/viewer/2022030506/5ab47c5f7f8b9adc638c2023/html5/thumbnails/39.jpg)
© 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 39
![Page 40: Chapter 3: Network Protocols and Communicationsmars.tekkom.dk/mediawiki/images/e/e5/ITNv51_InstructorPPT_CH3.pdfIntroduction to Networks v5.1 Chapter 3: Network Protocols and Communications](https://reader031.vdocuments.net/reader031/viewer/2022030506/5ab47c5f7f8b9adc638c2023/html5/thumbnails/40.jpg)
© 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 40
![Page 41: Chapter 3: Network Protocols and Communicationsmars.tekkom.dk/mediawiki/images/e/e5/ITNv51_InstructorPPT_CH3.pdfIntroduction to Networks v5.1 Chapter 3: Network Protocols and Communications](https://reader031.vdocuments.net/reader031/viewer/2022030506/5ab47c5f7f8b9adc638c2023/html5/thumbnails/41.jpg)
© 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 41
Upon completion of this section, you should be able to:
• Explain how data encapsulation allows data to be transported across the network.
• Explain how local hosts access local resources on a network.
![Page 42: Chapter 3: Network Protocols and Communicationsmars.tekkom.dk/mediawiki/images/e/e5/ITNv51_InstructorPPT_CH3.pdfIntroduction to Networks v5.1 Chapter 3: Network Protocols and Communications](https://reader031.vdocuments.net/reader031/viewer/2022030506/5ab47c5f7f8b9adc638c2023/html5/thumbnails/42.jpg)
Cisco Public© 2013 Cisco and/or its affiliates. All rights reserved. 42
![Page 43: Chapter 3: Network Protocols and Communicationsmars.tekkom.dk/mediawiki/images/e/e5/ITNv51_InstructorPPT_CH3.pdfIntroduction to Networks v5.1 Chapter 3: Network Protocols and Communications](https://reader031.vdocuments.net/reader031/viewer/2022030506/5ab47c5f7f8b9adc638c2023/html5/thumbnails/43.jpg)
© 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 43
Communicating the Message
![Page 44: Chapter 3: Network Protocols and Communicationsmars.tekkom.dk/mediawiki/images/e/e5/ITNv51_InstructorPPT_CH3.pdfIntroduction to Networks v5.1 Chapter 3: Network Protocols and Communications](https://reader031.vdocuments.net/reader031/viewer/2022030506/5ab47c5f7f8b9adc638c2023/html5/thumbnails/44.jpg)
© 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 44
Communicating the Message
![Page 45: Chapter 3: Network Protocols and Communicationsmars.tekkom.dk/mediawiki/images/e/e5/ITNv51_InstructorPPT_CH3.pdfIntroduction to Networks v5.1 Chapter 3: Network Protocols and Communications](https://reader031.vdocuments.net/reader031/viewer/2022030506/5ab47c5f7f8b9adc638c2023/html5/thumbnails/45.jpg)
© 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 45
Segmenting Messages:
• Allows many different conversations to be interleaved
• Increases the efficiency of network communications
• Adds complexity
![Page 46: Chapter 3: Network Protocols and Communicationsmars.tekkom.dk/mediawiki/images/e/e5/ITNv51_InstructorPPT_CH3.pdfIntroduction to Networks v5.1 Chapter 3: Network Protocols and Communications](https://reader031.vdocuments.net/reader031/viewer/2022030506/5ab47c5f7f8b9adc638c2023/html5/thumbnails/46.jpg)
© 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 46
Encapsulation
• Data
• Segment
• Packet
• Frame
• Bits
![Page 47: Chapter 3: Network Protocols and Communicationsmars.tekkom.dk/mediawiki/images/e/e5/ITNv51_InstructorPPT_CH3.pdfIntroduction to Networks v5.1 Chapter 3: Network Protocols and Communications](https://reader031.vdocuments.net/reader031/viewer/2022030506/5ab47c5f7f8b9adc638c2023/html5/thumbnails/47.jpg)
© 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 47
![Page 48: Chapter 3: Network Protocols and Communicationsmars.tekkom.dk/mediawiki/images/e/e5/ITNv51_InstructorPPT_CH3.pdfIntroduction to Networks v5.1 Chapter 3: Network Protocols and Communications](https://reader031.vdocuments.net/reader031/viewer/2022030506/5ab47c5f7f8b9adc638c2023/html5/thumbnails/48.jpg)
© 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 48
![Page 49: Chapter 3: Network Protocols and Communicationsmars.tekkom.dk/mediawiki/images/e/e5/ITNv51_InstructorPPT_CH3.pdfIntroduction to Networks v5.1 Chapter 3: Network Protocols and Communications](https://reader031.vdocuments.net/reader031/viewer/2022030506/5ab47c5f7f8b9adc638c2023/html5/thumbnails/49.jpg)
Cisco Public© 2013 Cisco and/or its affiliates. All rights reserved. 49
![Page 50: Chapter 3: Network Protocols and Communicationsmars.tekkom.dk/mediawiki/images/e/e5/ITNv51_InstructorPPT_CH3.pdfIntroduction to Networks v5.1 Chapter 3: Network Protocols and Communications](https://reader031.vdocuments.net/reader031/viewer/2022030506/5ab47c5f7f8b9adc638c2023/html5/thumbnails/50.jpg)
© 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 50
Network Addresses and Data Link Addresses
![Page 51: Chapter 3: Network Protocols and Communicationsmars.tekkom.dk/mediawiki/images/e/e5/ITNv51_InstructorPPT_CH3.pdfIntroduction to Networks v5.1 Chapter 3: Network Protocols and Communications](https://reader031.vdocuments.net/reader031/viewer/2022030506/5ab47c5f7f8b9adc638c2023/html5/thumbnails/51.jpg)
© 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 51
Layer 3 Network Addresses
![Page 52: Chapter 3: Network Protocols and Communicationsmars.tekkom.dk/mediawiki/images/e/e5/ITNv51_InstructorPPT_CH3.pdfIntroduction to Networks v5.1 Chapter 3: Network Protocols and Communications](https://reader031.vdocuments.net/reader031/viewer/2022030506/5ab47c5f7f8b9adc638c2023/html5/thumbnails/52.jpg)
© 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 52
Network Address
• Source IP address
• Destination IP address
• Responsible for delivering the IP packet from the original source to the final destination, either on the same network or to a remote network.
Data Link Address
• Source data link address
• Destination data link address
• Responsible for delivering the data link frame from one network interface card (NIC) to another NIC on the same network
![Page 53: Chapter 3: Network Protocols and Communicationsmars.tekkom.dk/mediawiki/images/e/e5/ITNv51_InstructorPPT_CH3.pdfIntroduction to Networks v5.1 Chapter 3: Network Protocols and Communications](https://reader031.vdocuments.net/reader031/viewer/2022030506/5ab47c5f7f8b9adc638c2023/html5/thumbnails/53.jpg)
© 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 53
Layer 2 Data Link Addresses
![Page 54: Chapter 3: Network Protocols and Communicationsmars.tekkom.dk/mediawiki/images/e/e5/ITNv51_InstructorPPT_CH3.pdfIntroduction to Networks v5.1 Chapter 3: Network Protocols and Communications](https://reader031.vdocuments.net/reader031/viewer/2022030506/5ab47c5f7f8b9adc638c2023/html5/thumbnails/54.jpg)
© 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 54
Layer 2 Data Link Addresses
![Page 55: Chapter 3: Network Protocols and Communicationsmars.tekkom.dk/mediawiki/images/e/e5/ITNv51_InstructorPPT_CH3.pdfIntroduction to Networks v5.1 Chapter 3: Network Protocols and Communications](https://reader031.vdocuments.net/reader031/viewer/2022030506/5ab47c5f7f8b9adc638c2023/html5/thumbnails/55.jpg)
© 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 55
![Page 56: Chapter 3: Network Protocols and Communicationsmars.tekkom.dk/mediawiki/images/e/e5/ITNv51_InstructorPPT_CH3.pdfIntroduction to Networks v5.1 Chapter 3: Network Protocols and Communications](https://reader031.vdocuments.net/reader031/viewer/2022030506/5ab47c5f7f8b9adc638c2023/html5/thumbnails/56.jpg)
© 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 56
• Role of the Network Layer Addresses
Network portion of the IP Address – The left-most part of the address that indicates which network the IP address is a member.
Host portion – The remaining part of the address that identifies a specific device on the network.
• Source IP address – The IP address of the sending device
• Destination IP address – The IP address of the receiving device
• Role of the Data Link Layer Addresses
Source MAC address – This is the data link address, or the Ethernet MAC address, of the sending device.
Destination MAC address – When the receiving device is on the same network as the sending device, this is the data link address of the receiving device.
![Page 57: Chapter 3: Network Protocols and Communicationsmars.tekkom.dk/mediawiki/images/e/e5/ITNv51_InstructorPPT_CH3.pdfIntroduction to Networks v5.1 Chapter 3: Network Protocols and Communications](https://reader031.vdocuments.net/reader031/viewer/2022030506/5ab47c5f7f8b9adc638c2023/html5/thumbnails/57.jpg)
© 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 57
![Page 58: Chapter 3: Network Protocols and Communicationsmars.tekkom.dk/mediawiki/images/e/e5/ITNv51_InstructorPPT_CH3.pdfIntroduction to Networks v5.1 Chapter 3: Network Protocols and Communications](https://reader031.vdocuments.net/reader031/viewer/2022030506/5ab47c5f7f8b9adc638c2023/html5/thumbnails/58.jpg)
© 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 58
Role of the Network Layer Addresses
• The source and destination IP addresses will represent hosts on different networks indicated by the different network portions of the source and destination addresses.
Role of the Data Link Layer Addresses
• Destination MAC address - When the receiving device is on a different network from the sending device, the sending device uses the Ethernet MAC address of the default gateway or router.
![Page 59: Chapter 3: Network Protocols and Communicationsmars.tekkom.dk/mediawiki/images/e/e5/ITNv51_InstructorPPT_CH3.pdfIntroduction to Networks v5.1 Chapter 3: Network Protocols and Communications](https://reader031.vdocuments.net/reader031/viewer/2022030506/5ab47c5f7f8b9adc638c2023/html5/thumbnails/59.jpg)
© 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 59
Chapter Objectives:
• Explain how rules are used to facilitate communication.
• Explain the role of protocols and standards organizations in facilitating interoperability in network communications.
• Explain how devices on a LAN access resources in a small to medium-sized business network.
![Page 60: Chapter 3: Network Protocols and Communicationsmars.tekkom.dk/mediawiki/images/e/e5/ITNv51_InstructorPPT_CH3.pdfIntroduction to Networks v5.1 Chapter 3: Network Protocols and Communications](https://reader031.vdocuments.net/reader031/viewer/2022030506/5ab47c5f7f8b9adc638c2023/html5/thumbnails/60.jpg)
Thank you.