Cisco Catalyst 6807-XL Betriebsanleitung
Troubleshooting
•Getting Started, page 1
•Solving Problems at the System Component Level, page 1
•Identifying Startup Problems, page 2
•Troubleshooting the Power Supply Module, page 2
•Troubleshooting the Fan Tray, page 3
•Contacting Cisco Customer Service, page 4
•Finding Serial Numbers, page 4
Getting Started
When the initial system startup is complete, verify the following:
•Power supplies are supplying power to the system.
•The fan tray assembly is operating.
•System software boots successfully.
If one or more of the above conditions are not met, use the procedures described in this chapter to isolate and,
if possible, resolve the problem. If all of the above conditions are met, and the hardware installation is complete,
refer to your software release notes for hardware support information and software caveats.
Solving Problems at the System Component Level
The key to success when troubleshooting the system is to isolate the problem to a specific system component.
The first step is to compare what the system 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 system.
The switch consists of these subsystems:
•Power supplies
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•Fan tray assembly
The chassis fan tray assembly should operate whenever system power is on. You should see the FAN
LED turn green and hear the fan tray assembly operating. A FAN LED indicates that one or more fans
in the fan tray assembly is not operating. You should immediately contact a Customer Service
representative if the fan tray assembly is not functioning properly. There are no installation adjustments
that you can make if the fan tray assembly does not function properly at initial startup.
Identifying Startup Problems
LEDs indicate all system states in the startup sequence. By checking the LEDs, you can determine when and
where the system failed in the startup sequence.
Procedure
Step 1 Turn on the power supplies. You should immediately hear the system fan tray assembly begin to operate.
•If you do not hear the fans operating, see the Troubleshooting the Power Supply Module, on page 2
section.
•If you determine that the power supplies are functioning normally and that the fan tray assembly is
faulty, contact a customer service representative.
•If the fan tray assembly does not function properly at initial startup, there are no installation adjustments
that you can make. Troubleshooting the Fan Tray, on page 3 section.
Step 2 If the startup information and system banner do not display at startup, verify that the terminal is set correctly
and that it is connected properly to the console port.
Troubleshooting the Power Supply Module
If the INPUT OK LED does not light up after you turn on the power switch, follow these steps to isolate a
power subsystem problem:
Procedure
Step 1 Verify that the INPUT OK LED on the PSM is green.
a) If the IN LED is green, the AC source is good and the power supply is functional.
b) If the IN LED is off, ensure that the PSM is flush with the back of the chassis. Turn off the power switch,
tighten the captive installation screw, and then turn on the power switch.
c) If the IN LED remains off, there might be a problem with the AC source or the power cord.
d) Turn off the power to the switch, connect the power cord to another power source if one is available, and
turn on the power.
e) If the IN LED is green, the problem is the first power source.
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Troubleshooting
Identifying Startup Problems
f) If the IN LED fails to light up after you connect the power supply to a new power source, replace the
power cord, and turn on the switch.
g) If the IN LED then lights up, return the first power cord for replacement.
If this unit has more than one power cord, repeat Step 1 (and all the substeps) for each PSM.
For information about PSM LEDs, see Power Supply Module LEDs.
Step 2 If the INPUT OK LED still fails to light up when the switch is connected to a different power source with a
new power cord, the PSM is probably faulty.
If a second PSM is available, install it in the second power supply bay, and contact a Cisco customer service
representative for further instructions.
Step 3 Verify that you have installed the power cord in the correct PEM.
Each PSM and corresponding PEM is numbered.
Step 4 Repeat Step 1, Step 2 , and Step 3 for all the PSMs that you have installed.
If you are unable to resolve the problem, or if you have determined that either a power supply or a backplane
connector is faulty, contact a Cisco customer service representative for instructions.
Related Topics
Power Supply Module
Power Entry Module
Power Supply Module LEDs
3000 W Power Supply AC Power Cords
Troubleshooting the Fan Tray
To isolate a fan tray problem, follow these steps:
Procedure
Step 1 Verify that the FAN LED on the fan tray is green.
If the FAN LED is not green, see Solving Problems at the System Component Level, on page 1 to determine
whether or not the power subsystem is functioning properly.
For information about fan tray LEDs, see Fan Tray LED.
Step 2 Check to determine if the FAN LED is red. If the FAN LED is red, the fan tray is not seated in the backplane
or has malfunctioned. Perform the following tasks:
a) To ensure that the fan tray is seated properly, remove the fan tray, and reinstall it. See Removing and
Installing the Fan Tray.
b) Restart the system.
c) If the FAN LED is still red, the system detects one or more fan failures. Contact a Cisco customer service
representative for instructions.
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Troubleshooting
Troubleshooting the Fan Tray
Related Topics
Fan Tray
Air Flow
Fan Tray LED
Contacting Cisco Customer Service
If you are unable to solve a startup problem after using the troubleshooting suggestions in this chapter, contact
a Cisco customer service representative for assistance and additional instructions. Before you call, have the
following information ready to help your service provider assist you as quickly as possible:
•Date on which you received the switch
•Chassis serial number
•Type of software and release number
•Maintenance agreement or warranty information
•Brief description of the problem
•Brief explanation of the steps you have already taken to isolate and resolve the problem
Finding Serial Numbers
If you contact Cisco Technical Assistance, you should know the serial number of the part you are having a
problem with. You can also use the show version privileged EXEC command to see the serial number.
Table 1: Serial Number Illustrations
Serial Number IllustrationItem
Figure 1: Chassis Serial Number Location, on page 5Chassis
Figure 2: Fan Tray Serial Number Location, on page 5Fan Tray
Figure 3: Power Supply Module Serial Number Location, on page 5Power Supply Module
Figure 4: Power Supply Converter Serial Number Location, on page 6Power Supply Converter
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Troubleshooting
Contacting Cisco Customer Service
Figure 1: Chassis Serial Number Location
Figure 2: Fan Tray Serial Number Location
Figure 3: Power Supply Module Serial Number Location
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Troubleshooting
Finding Serial Numbers
Figure 4: Power Supply Converter Serial Number Location
Related Topics
Rack-Mounting the Chassis
Chassis
Cisco Catalyst 6807-XL Switch Hardware Installation Guide
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Troubleshooting
Finding Serial Numbers
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