3Com 3C6090 - NETBuilder II Dual Processor Engine Router User Manual - page 19
LED Patterns
2-3
Table 2-3 Error indications of LEDs
Run
Load
Test
G = green
Y = yellow
x = any value
- = off
F = flashing
Packet Forward
Power/Fault
Status
Meaning
G
G
Y
G
G
G
G
G
Y
Board hung very early in firmware load
Return module for repair.
-
-
Y
-
-
-
G
-
YF
DRAM test failed
Reseat or replace SIMM.
-
-
Y
-
-
G
-
-
YF
Firmware load failed
Return module for repair.
-
-
Y
-
-
G
G
-
YF
Attention buttons pressed
Reset system to reboot.
-
-
Y
-
G
-
x
-
G
Hang during firmware initialization
-
-
Y
G
-
-
x
-
G
Hang during board-level tests
Return module for repair.
-
-
Y
G
-
G
x
-
YF
Corebus loopback test failed
Reseat DPE.
-
-
Y
G
G
-
x
-
YF
Serial port or shared memory test failed
Return module for repair.
-
-
Y
G
G
G
x
-
YF
FPROM contents corrupted
Return module for repair.
-
G
-
-
G
-
x
-
YF
Unable to load bridge/router image; unable to load from
flash memory, or TFTP get failed
Replace flash memory card with a backup or verify TFTP
parameters and setup.
-
G
-
-
G
G
x
-
YF
No valid bridge/router image file found; bad checksum or
magic number
Replace flash memory card with a backup.
-
G
-
G
G
-
x
-
YF
No valid bridge/router image; unable to load
Replace flash memory card with a backup.
-
G
-
G
G
G
x
-
G
Hang during bridge/router initialization
G
-
-
x
x
x
x
x
YF
Bridge/router software has crashed and entered the debug
monitor, as specified by the RA command in the boot
monitor or by the SysconF command in the software.