Appendix a: troubleshooting, Diagnosing switch indicators, Power and cooling problems – Alcatel-Lucent OMNISTACK 6300-24 User Manual

Page 43: Installation, In-band access, Installation a-1 in-band access

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A-1

Appendix A: Troubleshooting

Diagnosing Switch Indicators

Table A-1. Troubleshooting Chart

Power and Cooling Problems

If the power indicator does not turn on when the power cord is plugged in, you may
have a problem with the power outlet, power cord, or internal power supply.
However, if the unit powers off after running for a while, check for loose power
connections, power losses or surges at the power outlet, and verify that the fans on
the unit are unobstructed and running prior to shutdown. If you still cannot isolate the
problem, then the internal power supply may be defective.

Installation

Verify that all system components have been properly installed. If one or more
components appear to be malfunctioning (such as the power cord or network
cabling), test them in an alternate environment where you are sure that all the other
components are functioning properly.

In-Band Access

You can access the management agent in the switch from anywhere within the
attached network using Telnet, a Web browser, or other network management
software tools. However, you must first configure the switch with a valid IP address,

Troubleshooting Chart

Symptom

Action

Power LED is Off

• Check connections between the switch, the power cord, and the wall

outlet.

• Contact your dealer for assistance.

Link LED is Off

• Verify that the switch and attached device are powered on.
• Be sure the cable is plugged into both the switch and corresponding

device.

• Verify that the proper cable type is used and its length does not exceed

specified limits.

• Check the adapter on the attached device and cable connections for

possible defects. Replace the defective adapter or cable if necessary.

Diag LED is Red

• Try power cycling the switch to clear the condition.
• If the condition does not clear, contact your dealer for assistance.

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