7
T
ROUBLESHOOTING
Troubleshooting the
Power System
Symptom:
The PWR LED RUN is OFF or blinking.
Solution
:
Check that:
■
The power switch on the router is turned on.
■
The switch of the power source is turned on.
■
The power cord is correctly connected.
■
The power source meets the requirement of the router. If the PSU is DC-input,
check the AC/DC OK LED: steady ON means the input voltage is normal. OFF
means the input voltage is abnormal.
Troubleshooting the
Configuration System
If the router passes POST after powered up, the console screen displays the startup
banner; if faults occur to the configuration system, the console screen displays
nothing or only illegible characters.
Troubleshooting the console terminal
Symptom:
After the router is powered on, the console screen displays nothing.
Solution:
Step 1: Check that:
■
The power system is normal.
■
The console cable is correctly connected.
Step 2: Check the console cable and the terminal (HyperTerminal for example)
settings.
Troubleshooting the console terminal
Symptom:
After the router is powered on, the console screen displays illegible characters.
Solution:
Содержание MSR 30-16
Страница 4: ...4 GET THE LATEST DOCUMENTATION AND SOFTWARE FOR YOUR H3C ROUTER...
Страница 54: ...54 CHAPTER 4 STARTUP AND CONFIGURATION...
Страница 78: ...78 CHAPTER 5 SOFTWARE MAINTENANCE...