Information Technology Reference
In-Depth Information
Table 3-6 outlines the areas where Catalyst 2900 series startup problems may occur and describes
solutions to those problems.
Table3-6
Hardware: Catalyst 2900 Series Startup Problems and Solutions
Possible Problem Area
Solution
Power subsystem
Check the Power LED. If it is off, ensure that the power
supply cord is not damaged and that it is properly
attached to the power supply and to an AC receptacle.
1.
If the LED is red, the power supply has detected an
anomaly or voltage outage and needs to be serviced.
Contact your technical support representative for
instructions.
2.
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, contact a technical support
representative for assistance.
Series 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.
Testing and Verifying Replacement Parts
If you are replacing a part or card to remedy a suspected problem, make only one change at a time.
To test a system, start with a simple hardware configuration and add one card at a time until a failed
interface appears or is isolated. Use a simple software configuration, and test connectivity using a
ping
test.
If you determine that a part or card replacement is required, contact your sales or technical support
representative. Specific instructions concerning part or card installation are outlined in the configuration
note provided with the replacement.
For modular routers, make sure that you seat all cards correctly. Check the seating of cards if the system
is not booting properly. Use the ejector levers to reseat all processor modules, and then reboot.
Caution
Before accessing the chassis interior and removing any cards, turn off power to the chassis.
Use extreme caution around the chassis. Potentially harmful voltages are present.
