tailieunhanh - NETWORK+ GUIDE TO NETWORKS, FOURTH EDITION - CHAPTER 12

Troubleshooting Network Problems Describe the steps involved in an effective troubleshooting methodology Follow a systematic troubleshooting process to identify and resolve networking problems Document symptoms, solutions, and results when troubleshooting network problems Use a variety of software and hardware tools to diagnose problems | Network+ Guide to Networks, Fourth Edition Chapter 12 Troubleshooting Network Problems Objectives Describe the steps involved in an effective troubleshooting methodology Follow a systematic troubleshooting process to identify and resolve networking problems Document symptoms, solutions, and results when troubleshooting network problems Use a variety of software and hardware tools to diagnose problems Linux+ Guide to Linux Certification, Second Edition Troubleshooting Methodology Steps for troubleshooting network problems: Identify symptoms and potential causes Identify affected area Establish what has changed Select most probable cause Verify user competency Re-create problem Verify physical integrity of network connection Verify logical integrity of network connection Linux+ Guide to Linux Certification, Second Edition Troubleshooting Methodology (continued) Steps for troubleshooting network problems (continued): Implement an action plan and solution and be prepared for all . | Network+ Guide to Networks, Fourth Edition Chapter 12 Troubleshooting Network Problems Objectives Describe the steps involved in an effective troubleshooting methodology Follow a systematic troubleshooting process to identify and resolve networking problems Document symptoms, solutions, and results when troubleshooting network problems Use a variety of software and hardware tools to diagnose problems Linux+ Guide to Linux Certification, Second Edition Troubleshooting Methodology Steps for troubleshooting network problems: Identify symptoms and potential causes Identify affected area Establish what has changed Select most probable cause Verify user competency Re-create problem Verify physical integrity of network connection Verify logical integrity of network connection Linux+ Guide to Linux Certification, Second Edition Troubleshooting Methodology (continued) Steps for troubleshooting network problems (continued): Implement an action plan and solution and be prepared for all potential effects Test the result Identify results and effects of solution Document solution and process Linux+ Guide to Linux Certification, Second Edition Identify the Symptoms and Potential Causes Questions that may help identify non-obvious symptoms: Access to network affected? Network performance affected? Data and/or programs affected? Only certain network services affected? Problems include local application, networked application, or multiple networked applications? Specific error messages reported? One user or multiple users affected? Symptoms manifested consistently? Linux+ Guide to Linux Certification, Second Edition Identify the Affected Area Figure 12-1: Identifying the area affected by a problem Linux+ Guide to Linux Certification, Second Edition Identify the Affected Area (continued) Figure 12-1 (continued): Identifying the area affected by a problem Linux+ Guide to Linux Certification, Second Edition Identify the Affected Area (continued) Figure 12-2: .