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Cyclades-PR2000
Appendix A - Troubleshooting 120
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.
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 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.