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CHAPTER
3-1
Catalyst 2900 Series XL Hardware Installation Guide
78-6461-03
3
Troubleshooting
The LEDs on the front panel of the Catalyst 2900 series XL switch provide
troubleshooting information about the switch. They show failures in the power-on
self-test (POST), port-connectivity problems, and overall switch performance.
For a full description of the switch LEDs, see the “LEDs” sectiononpage1-9.
You can also get statistics from the browser interface, from the command-line
interface (CLI), or from an SNMP workstation. See the Catalyst 2900 Series XL
and Catalyst 3500 Series XL Software Configuration Guide, the Catalyst 2900
Series XL and Catalyst 3500 Series XL Command Reference,orthe
documentation that came with your SNMP application for details.
This chapter describes the following topics for troubleshooting problems:
• Understanding POST Results
• Diagnosing Problems