Cyclades PR2000 Manual De Usuario
Cyclades-PR2000
Appendix A - Troubleshooting
39
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.
indication of what went wrong.
3 While the router is booting, the LEDs labeled CPU, Tx, Rx and GP indicate the stage of the boot process,
as shown in Figure A.1. When the router has started up properly, the CPU LED blinks consistently one
second on, one second off.
second on, one second off.
Test
CPU
1
2
3
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.