1.1.5 Guidelines for Selecting a Troubleshooting Method
To quickly resolve network problems, take the time to select the most effective network troubleshooting method.
The figure illustrates which method could be used when a certain type of problem is discovered.
For instance, software problems are often solved using a top-down approach while hardware-based problem are solved using the bottom-up approach. New problems may be solved by an experienced technician using the divide-and-conquer method. Otherwise, the bottom-up approach may be used.
Troubleshooting is a skill that is developed by doing it. Every network problem you identify and solve gets added to your skill set.