Appendix a troubleshooting, Boot messages, Cpu led – Cyclades PR1000 User Manual
Page 109: Illumination while booting, Problem resolution, Troubleshooting
Cyclades-PR1000
Appendix A - Troubleshooting
109
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. Is the PC’s COM port
enabled? Is the Console cable being used? See Chapter 2 for instructions on which cables go where.
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.
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.
Test
CPU
Tx
Rx
GP
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