Chapter 6. Troubleshooting; System Led Is Not Lit; Port Link Led Is Not Lit; Temperature Sensor Warning - Lenovo RackSwitch G8264CS Installation Manual

Chapter 6. Troubleshooting

System LED Is Not Lit

Port Link LED Is Not Lit

Temperature Sensor Warning

Switch Does Not Initialize (Boot)

© Copyright Lenovo 2015
This section contains basic troubleshooting information to help resolve problems
that might occur during installation and operation of the switch. If you have problems
accessing the switch or working with the firmware, see the Command Reference for
the switch.
For information about calling Lenovo for service, see
Technical Assistance" on
Symptom: The power supply LED is not lit.
Solution: Check the power supply to make sure that there is a proper connection to
the power source. Make sure that power is available from the power source.
Symptom: The port link LED is not lit.
Solution 1: Check the port configuration in the firmware (see the Command
Reference). If the port is configured with a specific speed or duplex mode, check the
other device to make sure that it is set to the same configuration. If the switch port is
set to auto-negotiate, make sure that the other device is set to auto-negotiate.
Solution 2: Check the cables that connect the port to the other device. Make sure
that they are connected correctly. Make sure that you are using the correct cable
type.
Symptom: A temperature warning is displayed on the management console.
Solution: Make sure that the air circulation vents on the front, back, and sides of the
switch are free from obstruction by cables, panels, rack frames, or other materials.
Make sure that all cooling fans inside the switch are running. A fan module LED
(rear panel) flashes if there is a failure of the fan. The following CLI command
displays fan status:
RS 8264CS> show sys-info
If any fan stops during switch operation, contact Customer Support.
Symptom: All the switch LEDs stay on, and the command prompt is not displayed
on the console.
Solution: The operating system might be damaged. Use the console port to
perform a serial upgrade of the switch firmware. See the Command Reference.
page 79.
Appendix A, "Getting Help and
77