Appendix A Troubleshooting
Identifying Startup Problems
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•The Active LED turns green, indicating that the supervisor module is operational and active.
•Each Link LED flashes orange once and stays orange during diagnostic boot tests, and turns green when the module is operational (online). If no signal is detected, the Link LED turns off. The Link LED blinks orange if the port is bad.
If any LEDs on the supervisor module or interface module front panel are red or orange, contact your customer service representative (see the “Contacting Customer Service” section on page
For a complete description of the supervisor module and interface module LEDs, see the “Supervisor Module LEDs” section on page
Step 3 Verify that the Status LEDs on the supervisor module and on the switching or services module are green when the supervisor module completes initialization. This LED indicates that the modules are receiving power. It also indicates that the module is recognized by the supervisor module, and that it contains a valid Flash code version. This LED does not indicate the state of the individual interfaces on the switching module. If a Status LED is red or orange, contact your customer service representative (see the “Contacting Customer Service” section on
page A-7).
Step 4 Verify that the terminal is set correctly and that it is connected properly to the supervisor module console port if the boot information and system banner are not displayed.
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