CCNA Discovery 1 - Chapter 9

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CCNA Discovery 1 - Chapter 9

  1. 1. Troubleshooting Your Network Networking for Home and Small Businesses – Chapter 9Version 4.0 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 1
  2. 2. Objectives Describe the troubleshooting process. Describe the utilities used to verify TCP/IP connectivity. Identify and describe common hardware and connection issues in wired and wireless networks. Utilize the troubleshooting process to document problems and interact with a help desk. © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 2
  3. 3. The Troubleshooting Process Identify and describe troubleshooting process © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 3
  4. 4. The Troubleshooting Process Gathering Information © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 4
  5. 5. The Troubleshooting Process Describe approaches to troubleshooting © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 5
  6. 6. Utilities Used to Verify TCP/IP Connectivity Detecting Physical problems © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 6
  7. 7. Utilities Used to Verify TCP/IP Connectivity Identify and describe software utilities for troubleshooting connectivity. © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 7
  8. 8. Utilities Used to Verify TCP/IP Connectivity Describe and use Ipconfig © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 8
  9. 9. Utilities Used to Verify TCP/IP Connectivity Describe and use ping © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 9
  10. 10. Utilities Used to Verify TCP/IP Connectivity Describe and use tracert © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 10
  11. 11. Utilities Used to Verify TCP/IP Connectivity Describe and use netstat © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 11
  12. 12. Utilities Used to Verify TCP/IP Connectivity Describe and use nslookup © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 12
  13. 13. Hardware and Connection Issues in Wired &Wireless Networks Isolating connectivity issues © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 13
  14. 14. Hardware and Connection Issues in Wired &Wireless Networks Describe the purpose of LED indicators and their meaning. © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 14
  15. 15. Hardware and Connection Issues in Wired &Wireless Networks Describe connection issues with wired networks. © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 15
  16. 16. Hardware and Connection Issues in Wired &Wireless Networks Identify and describe radio issues with a wireless network. © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 16
  17. 17. Hardware and Connection Issues in Wired &Wireless Networks Identify and describe association and authentication issues within a wireless network. © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 17
  18. 18. Hardware and Connection Issues in Wired &Wireless Networks DHCP Issues. © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 18
  19. 19. Hardware and Connection Issues in Wired &Wireless Networks Troubleshooting Integrated Router to ISP connections. © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 19
  20. 20. Utilizing the Troubleshooting Process forDocumentation and Help Desk Interactions Describe the importance of documentation © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 20
  21. 21. Utilizing the Troubleshooting Process forDocumentation and Help Desk Interactions Using outside sources of help © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 21
  22. 22. Utilizing the Troubleshooting Process forDocumentation and Help Desk Interactions Using the Helpdesk © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 22
  23. 23. Summary Effective troubleshooting combines instinct, experience, and structured techniques to identify, locate, and correct network or computer problems. Documentation is essential in effective troubleshooting, and should contain baseline information about the network. A large proportion of networking problems relate to physical components. Many networking problems can be identified with software utilities such as ping, tracert, and netstat. In a network containing both wired and wireless connections, it is important to isolate the problem to either the wired or wireless network. © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 23
  24. 24. © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 24

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