System information

Troubleshooting Hardware
Book Title
3-34
When the system boot is complete, the supervisor engine module initializes the switching modules.
The status LED on each switching module goes on when initialization has been completed, and the
console screen displays a script and system banner similar to the following:
BOOTROM Version 2.1, Dated May 22 1996 15:17:09
Boot date: 05/22/96 BOOT time: 15:17:09
Executing from RAM
Cisco Systems Console
Sending RARP request with address 00:40:0b:a0:05:b8
Sending bootp request with address 00:40:0b:a0:05:b8
Sending RARP request with address 00:40:0b:a0:05:b8
Sending bootp request with address 00:40:0b:a0:05:b8
No bootp or rarp response received
Enter password:
If problems occur, try to isolate the problem to a specific subsystem. The Catalyst 2900 series LAN
switches have the following subsystems:
• Power subsystem—This subsystem includes the power supplies and power supply fans.
• Cooling subsystem—This subsystem includes the chassis fan assembly, which should be
operating when the system power is on.
• Processor and interface subsystem—This subsystem includes the supervisor engine module
(which contains the system operating software), the network interfaces, and all associated
cabling.
Table 3-8 outlines the areas where Catalyst 2900 series startup problems may occur and describes
solutions to those problems.
Table 3-8 Hardware: Catalyst 2900 Series Startup Problems and Solutions
Possible Problem Area Solution
Power subsystem
Step 1 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.
Step 2 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.
Cooling subsystem
Step 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.
Step 2 If the Fan LED is red, contact a technical support
representative for assistance.