System information

Troubleshooting Hardware and Booting Problems 3-33
Catalyst 2900 Series Startup
Table 3-7 outlines the areas where Catalyst 3000 series startup problems may occur and describes
solutions to those problems.
Table 3-7 Hardware: Catalyst 3000 Series Startup Problems and Solutions
Catalyst 2900 Series Startup
When you start up a Catalyst 2900 series LAN switch, the following should occur:
• The PS LED on the supervisor engine module faceplate should come on and stay green while
power is applied to the system.
• The system fan assembly and Fan LED should come on and stay on while power is applied to the
system.
• The Status LED on the supervisor engine module and on each interface should be orange until
the boot is complete.
Possible Problem Area Solution
Power and cooling
subsystems
Step 1 Check to see whether the Power LED is on. If it is not on
and the fans are not running, check the AC power cord and
the AC receptacle the cord is plugged in to.
Make sure the cord is intact and properly attached. Swap the
cord with another cord to see whether the cord is faulty.
Make sure the receptacle is receiving power.
Step 2 If the Fault LED comes on after power up or after the unit
has been running for a period of time, cycle the power to the
unit.
Step 3 Check to see whether the fans are running and that the
chassis intake vents and exhaust ports are clear.
Step 4 View the console to check whether a temperature error has
been reported. If you continue to experience power
problems, or if temperature errors are being reported to the
console and you cannot isolate a specific cause and correct
it, contact the Cisco TAC.
1
1 TAC = Technical Assistance Center
Network interfaces and system
cables subsystem
Step 1 If a network interface is not recognized by the system,
check the interface cable and connection and the LED that
corresponds to the network interface.
Step 2 If a network interface is recognized but will not
communicate properly, check the interface cable and
connections.
Step 3 If the system will not boot properly or intermittently
reboots, the processor may be faulty or the hardware or
software setup may be incorrect.
Step 4 If the system boots but the console is frozen, check the
external console connection and verify the console setup.