Specifications

Troubleshooting the Installation 4-155
Troubleshooting Overview
Troubleshooting the RP Subsystem
Check the following items to help isolate the problem:
• Did any LEDs on the RP come on?
— If no, first refer to the section “Troubleshooting the Power Subsystem” earlier in this chapter
to determine whether the power subsystem is functioning properly.
— If no, suspect that an improperly connected RP, SP (or SSP), or interface processor has hung
the bus. Turn all power supply switches off, then use the ejector levers to ensure that each
board is seated properly. On each ejector lever pair, push the top lever down while pushing
the bottom lever up until both levers are at a 90-degree orientation to the rear of the chassis.
(For a description and illustration of the ejector levers, refer to the section “Ejector Levers”
in the chapter “Maintenance.”) Tighten all captive installation screws, then restart the
system.
• Are both the RP normal and front panel normal LEDs on?
— If yes, the system software has initialized successfully, and the system is operational.
— If only one of the normal LEDs is on but the other is not, suspect an LED failure. Try
proceeding with the installation and configuring the interfaces, but contact a service
representative for replacement instructions.
• Is the boot error LED on?
— If yes, the system software is unable to start up. Turn the system power off and on again.
— If you have a spare RP with the system software EPROMs installed, turn the system power
off and replace the installed RP with the spare.
— If after several attempts the boot error LED continues to come on, try to estimate the amount
of time that elapses between power on and when the LED comes on, and contact a service
representative.
• Is the RP CPU halt LED on?
— If yes, the system has detected a processor hardware failure. Contact a service representative
for instructions.
Troubleshooting the SP (or SSP) and Interface Processor Subsystem
Check the following to help isolate the problem:
• Are the enabled LEDs on the SP (or SSP) and all interface processors on?
— If yes, the system is operational. Proceed to the Router Products Getting Started Guide or
the Router Product Configuration Guide to configure the interfaces.
• Are any enabled LEDs on the SP (or SSP) and all interface processors on?
— If none of the enabled LEDs are on, first refer to the section “Troubleshooting the Power
Subsystem” earlier in this chapter to determine whether the power subsystem is functioning
properly. Then refer to the section “Troubleshooting the RP Subsystem” earlier in this
chapter to determine whether the system has booted successfully.