Chapter 10. Ethernet Switch Troubleshooting

This chapter covers the following subjects:

Perspectives on Network Verification and Troubleshooting: This is the first chapter dedicated to troubleshooting, and this section introduces the concept of troubleshooting computer networks.

Verifying the Network Topology with Cisco Discovery Protocol: This section focuses on CDP—specifically, how it can be used to verify network documentation.

Analyzing Layer 1 and 2 Interface Status: This section explains how to find and interpret interface status and how to find problems even when the interface appears to be working.

Analyzing the Layer 2 Forwarding Path with the MAC Address Table: This section examines how to link the concepts of how switches forward frames ...

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