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Cisco LAN Switching Fundamentals by Basir Sakandar - CCIE No. 6040, David Barnes - CCIE No. 6563

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Summary

This chapter introduced troubleshooting fundamentals. You first examined potential software issues. The software provides details about possible caveats, security vulnerabilities, and other known issues that can help expedite the troubleshooting process.

The second issue addressed was hardware problems. Catalyst switch commands such as show module and show test were cited to pinpoint hardware failure. Other commands were also cited to address specific Catalyst switching issues. Troubleshooting guidelines were provided to deal with issues such as Supervisor or an MSFC missing from the chassis.

The discussion turned to port errors seen on the network. Some of the more common fields within the show port command were discussed.

The importance ...

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