31 Days Before Your CCENT Certification

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Day 21. Identify, Prescribe, and Resolve Common Switched Network Issues, Autonegotiation, and Switch Hardware Failures

When the network stops and all the hosts stop talking, it is time to take a look at your switch. The troubleshooting process should start at Layer 1 with switch hardware issues and continue to Layer 2 with possible switch software or configuration issues. Chapter 9 of CCNA Discovery 1 and Chapters 2 and 5 of CCNA Discovery 2 explore troubleshooting options for you and your switch.

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