Troubleshooting The Route Processor - Cisco 12404 Installation And Configuration Manual

Troubleshooting the Processor Subsystem

Troubleshooting the Route Processor

Cisco 12404 Internet Router Installation and Configuration Guide
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Check the following to help isolate a problem with the RP.
Both the alphanumeric LED displays are on.
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The two displays are powered separately. The left display receives power
•
from the DC-DC converter on the RP. The right display is powered directly
from the power supply; therefore, even if the RP has not powered up, its right
display could be on. If both displays are off, the RP may not be properly
seated in the backplane connector, there might be a problem with the MBus
module on the RP, or the system power supply might be off.
If both displays are on, check the message being displayed. As soon as the
•
DC-DC converter is turned on by the MBus module, the processor on the RP
begins the boot process. Status messages are displayed as the boot process
continues. (See Table 4-5
displayed by the RP alphanumeric LED display.) If one of the messages
appears frozen, the boot process could be halted. Write the message being
displayed on a piece of paper. Turn off the system power supply power
switches, then turn them back on to reset the system and start the boot process
again. If the system halts again, the RP could be faulty and might need to be
replaced.
If the PEMs and fans appear operational but none of the RP LEDs or
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displays are on, suspect that the RP has not been properly installed or that
the +5 VDC output from the CSF card is faulty.
Turn the PEM power switch to the OFF position on each PEM.
–
– Loosen the two captive screws on the left and right sides of the
RP faceplate, and use the ejector levers to eject and reseat the RP. Tighten
the captive screws, then power on the system by turning the PEM power
switches on.
Chapter 4
which provides a list of messages that can be
Troubleshooting the Installation
OL-11636-01