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This appendix describes how to troubleshoot the Catalyst 2948G-L3 switch router hardware installation and contains these sections:
If your switch router has problems starting up, use the information in this appendix to help isolate the cause. Problems with the initial startup are often caused by poor or improper connections. Although temperature conditions above the maximum acceptable level rarely occur at initial startup, environmental monitoring functions are included.
To configure or enable the interfaces, refer to the Catalyst 2948G-L3 Software Feature and Configuration Guide.
After the system starts up, verify the following:
If any of these conditions are not met, use the procedures in this chapter to isolate and, if possible, resolve the problem. To configure the software, refer to the Catalyst 2948G-L3 Software Feature and Configuration Guide
The key to success when troubleshooting the switch router is to isolate the problem to a specific component. The first step is to compare what the switch router is doing to what it should be doing. Because a startup problem can usually be attributed to a single component, it is more efficient to isolate the problem to a subsystem rather than troubleshoot each separate component in the switch router.
The switch router consists of the following subsystems:
When you connect the power cords to the Catalyst 2948G-L3 switch router, the following steps should occur:
Step 1 Listen for the system fans to begin to operate. If they do not, see the "Troubleshooting the Power Supply" section. If you determine that the power supplies are functioning normally and that the fans are faulty, contact a customer service representative. If the switch router fans do not function properly at initial startup (there are no installation adjustments that you can make), contact a customer service representative.
Step 2 Check the power supply LEDs. The power supply LED should turn green immediately when power is on. The LED should remain on during normal switch router operation. If the LED turns red, see the "Troubleshooting the Power Supply" section.
Step 3 Check the LEDs on the front panel. See Table B-1 for LED descriptions.
| LED | State | Description |
|---|---|---|
Status
| | The Catalyst 2948G-L3 switch router performs a series of self-test diagnostics: |
Link status | Green | The 100BaseT is in use |
PS1 and RPSU | Green | Operational |
Step 4 Verify that the terminal is set correctly and that it is connected properly to the console port if the boot information and switch router banner are not displayed.
Step 5 Contact a customer service representative for instructions if a status LED indicates a failure.
To help isolate a power problem, follow these steps:
Step 1 Check the power supply LED. If the LED is off or if the LED is red, unplug the power cord, and then plug the power cord in.
If the LED remains off, there might be a problem with the AC source or the power cable.
Connect the power cord to another power source if one is available.
If the LED comes on, the problem is the first power source.
If the LED is off after you connect the power supply to a new power source, then replace the power cord.
If the LED still fails to light when the switch router is connected to a different power source with a new power cord, the power supply is probably faulty.
Step 2 Check the LED on the second (RPS) power supply.
If the LED is not green or on, repeat the previous procedure to troubleshoot the second power supply.
If you are unable to resolve the problem, contact a customer service representative for instructions.
If you are unable to solve a startup problem after using the troubleshooting suggestions in this chapter, contact a customer service representative for assistance and further instructions. Before you call, have the following information ready to help your service provider assist you as quickly as possible:
Posted: Wed May 31 14:34:09 PDT 2000
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