3Com 52x Network Router User Manual


 
4
TROUBLESHOOTING
This chapter describes troubleshooting using the LEDs on the front
panel of the system.
If the Power/Fault LED appears yellow at any time during the startup
process, the bridge/router has encountered a problem during system
test or system software load. If the Power/Fault LED appears yellow,
check the other LEDs as shown in the following figure.
If the Test LED is lit, a problem occurred during the system test phase.
Note the pattern of the Status LEDs and compare the results with the
information in Table 4-1.
If the Load LED is lit, a problem occurred during the system software
load phase. Note the pattern of the Status LEDs and compare the
results with the information in Table 4-2.
Status LEDs: (Left to right) is each one on or off?
Load LED: is it on constantly, or flashing?
Test LED: Is it on or off?
SuperStack II
NETBuilder
Console
SYSTEM
Status
Run
Load
Test
Fwd Power
/Fault
®
If the Power/Fault LED appears yellow during startup, check
the other LEDs for related indications of the problem.
SS2TRHWBook Page 1 Monday, May 5, 1997 3:11 PM