Chapter 4 Troubleshooting the Installation
Troubleshooting the Processor Subsystem
Troubleshooting Using the RP Alphanumeric Display
You can use the alphanumeric display to isolate a problem with the RP. The two rows on the alphanumeric display are powered separately:
•The upper row receives power from the
•The lower row is powered directly from the MBus on the RP through the chassis backplane.
–If the lower row is not operating, the MBus module may be malfunctioning.
–If the MBus module is operating, the lower row could be on even if the RP failed to powered on.
•If neither the upper nor the lower row is on, but the power modules and the blower modules are operational, the RP may not be installed properly, or the +5 VDC output from the chassis backplane is faulty.
–Make sure that the system is powered on.
–Initialize the RP by ejecting it from the chassis backplane and then reseating it.
Caution The soft reset (NMI) switch is not a mechanism for resetting the RP and reloading the Cisco software image. It is intended for software development use. To prevent system problems or loss of data, use the soft reset switch only when instructed by a Cisco certified service representative.
•If both the upper and the lower displays are operating, check the meaning of the messages (see Table
When the
–Make a note of the message.
–Turn off power to the router, then turn on the power again to reset the router and start the boot process. If the router halts again, replace the RP (see “Removing and Replacing Cards from the Line Card and RP Card Cage” section on page
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