Chapter 2. Troubleshooting Switching Technologies
This section focuses on switching. It assumes a standard topology of distribution and access switches. This chapter covers the kinds of issues that occur at Layer 2 in a network.
While reading this chapter, remember the structured approach to problem solving. Define the problem and gather information. Hypothesize and test. Because this chapter groups link issues together, it’s easy to proceed on some assumptions, but don’t let this be your practice in the real world. Take the time to make sure you understand the problem.
Link issues are amenable to a number of troubleshooting approaches. Good documentation makes any approach easier and more productive. Many times, especially when information is ...
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