Avocent Cyclades-PR4000 User Manual
Page 147
Cyclades-PR4000
Appendix A - Troubleshooting
147
APPENDIX A TROUBLESHOOTING
What to Do if the Login Screen Does Not Appear When Using a Console.
1 Check the configuration of the terminal. The correct values are given in chapter 2.
2 Check to see if the router booted correctly. Before the login screen appears, boot messages should appear
on the screen. If the system halts while booting, the last message on the screen should give an indication of
what went wrong. Boot messages will also appear on the LCD display on the front panel of the PR4000.
When the boot process is complete, the Cyclades logo will appear on the screen.
3 While the router is booting, the LEDs labeled Port 1 and Port 2 indicate the stage of the boot process, as
shown in Figure A.1.
Test "CPU"
3" 2"
"1"
Boot Code step
1
Off
Off Off
On
Boot Code CRC check
2
Off
Off On
off
Configuration vector load
3
Off
Off On
on
DRAM test
4
Off
On Off
off
Flash memory - Configuration validation
5
Off
On Off
on
Flash memory - Code validation
6
Off
On On
off
Interface cards detection
7
Off
On On
on
Ethernet port detection
8
On
Off Off
off
Real Time Clock test
9
On
Off Off
on
Boot code selection
10
On
off
On
off
Load of the operating code
11
On
off
On
on
Control is being passed to the operating code
FIGURE A.1 ILLUMINATION OF LEDS WHILE ROUTER IS BOOTING.
Note that all four LEDs blinking simultaneously indicates a memory problem, such as when no RAM is installed.