Chapter 3. Troubleshooting LAN Switching

This chapter covers the following exam topics:

Troubleshooting

Identify and correct common network problems

Troubleshoot and resolve interVLAN routing problems

Native VLAN

Port mode trunk status

This troubleshooting chapter, along with several other entire chapters and other sections of chapters, has an important job: to help you develop the troubleshooting skills required to quickly and confidently answer certain types of questions on the exams. At the same time, this chapter should make you better prepared to solve real networking problems.

The troubleshooting chapters and sections in this book do not have the same primary goal as the other materials. Simply put, the nontroubleshooting topics focus ...

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