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A-3
Problem Solving
Self-Test Progress States
Upon power up, the router immediately begins a sequence of self tests and
memory sizing. The following sequence of LEDs pass by so quickly that it is
difficult to identify the discrete steps on a functioning router.
Should a hardware fault be detected, the LEDs will reflect the progress made
into the self-test. This information can be useful when describing problems to
your service representative.
Table A-1 describes the router’s self-test progress LED states.
Table A-1. Router Self Test Progress LED States
1 2 3 4 5 6
1 0 000000Microprocessor test and register setup
1 0 G00001Microprocessor interrupts setup
1 0 G00010Option card microprocessor setup
1 0 G00011Option card interrupts setup
1 0 G00100Memory controller port and memory setup
1 0 G00101Peripheral controller port setup
1 0 G00110Option card port set up (if present)
1 0 G00111Restart configuration setup
1 0 G01000Memory controller dpram test
1 0 G01001Peripheral controller dpram test
Continued on the next page . . .
These tests are run prior to the router OK LED being lit.
NOTE