Information Technology Reference
In-Depth Information
Table 3-5 outlines the areas where Catalyst 5000 series startup problems may occur and describes
solutions to those problems.
Table3-5
Hardware: Catalyst 5000 Series Startup Problems and Solutions
Possible Problem Area
Solution
Power subsystem
Check to see whether the PS1 LED is on. If it is not,
ensure that the power supply is connected properly and
is flush with the back of the chassis. Make sure that
captive installation screws are tight.
1.
Check the AC source and the power cable. Connect the
power cord to another power source, if one is available,
and turn the power back on. If the LED fails to go on
after you connect the power supply to a new power
source, replace the power cord.
2.
If the LED fails to go on when the switch is connected
to a different power source with a new power cord, the
power supply is probably faulty. If a second power
supply is available, install it in the second power
supply bay, and contact a customer service
representative for further instructions.
3.
Repeat these steps for the second power supply, if
present.
4.
Cooling subsystem
1.
Check to see whether the Fan LED on the supervisor
engine module is green. If it is not, check the power
subsystem to see whether it is operational.
2.
If the Fan LED is red, the fan assembly might not be
seated properly in the backplane.
To ensure that the fan assembly is seated properly, loosen
the captive installation screws, remove the fan assembly,
and reinstall it. Tighten all captive installation screws, and
restart the system.
3.
If the Fan LED is still red, the system has probably
detected a fan assembly failure. Contact a technical
support representative for assistance.
continues
Processor and interface
subsystem
Check the supervisor engine module Status and Link
LEDs. These should both be green if all diagnostic and
self-tests were successful and ports are operational.
For more information about interpreting the supervisor
engine module LEDs, refer to the user guide for your
switch.
1.
Check the LEDs on individual interface modules. In
most cases, these should be green (or should flicker
green, in the case of Transmit and Receive LEDs) if the
interface is functioning correctly. For detailed
information on interpreting interface module LEDs,
refer to the user guide for your switch.
2.
Check all cabling and connections. Replace any faulty
cabling.
3.
