Hardware Problems and Solutions

Boot Sequence in Diagnostic Mode

1. Set the power switch on the IRX to the OFF position.

2. Set the terminal to 9600 baud, 8 data bits, no parity, 1 stop bit, Xon/Xoff software control.

3. Set DIP switch #1 to the UP position.

4. Attach the terminal (or PC) to the console port (S0) using a null modem cable. Refer to Table B-1 in Appendix B for pinouts.

Caution ¯ Before you reapply power, refer to "Safety Recommendations" on page 2-1 and "Power Guidelines" on page 2-4.

5. Set the power switch to the ON position.

6. Observe the boot diagnostics displayed on the console screen. Refer to Figure 4-1 for a sample boot screen in diagnostic mode and Table 4-2 for a description of displayed messages.

 

Lucent Technologies, Inc. Boot Prom Rev G   Testing Low Memory .... Testing System Clock .... Testing System Memory .... 1024K Checking Boot Rom .... Starting FLASH Boot ..... Loading Image at 0fff0000 340592 flash copy complete Verifying Load Module Checksum ... Starting Load Module ... Sizing Physical Memory ... 1MB Testing High Memory ... . 1024K Found 5 ports.... ether0 active ... 64K burst-IO Running ComOS... PortMaster Console login:

Table 4-2 Interpreting the Diagnostics Boot Screen

Field	Possible Message	What it Means
Boot Prom Rev	G	Version number of the boot prom installed
Testing Low Memory	ERROR	Message only on failure. Record all information to this point and contact Lucent InterNetworking Systems Technical Support.
Testing System Clock	ERROR	Message only on failure. Record all information to this point and contact Lucent InterNetworking Systems Technical Support.
Testing System Memory	ERROR at failed memory address	Message only on failure. Record all information to this point and contact Lucent InterNetworking Systems Technical Support.
Checking Boot Rom	ERROR	Message only on failure. Record all information to this point and contact Lucent InterNetworking Systems Technical Support.
Starting FLASH Boot	N/A	N/A
Loading Image at	0fff0000	RAM Address
flash copy complete	340592	Counter for Flash bytes transferred to RAM. If the counter freezes, record all information to this point and contact Lucent InterNetworking Systems Technical Support.
Verifying Load Module Checksum	Invalid Length for Flash at RAM address	Message only on failure. Record all information to this point and contact Lucent InterNetworking Systems Technical Support.
Starting Load Module	N/A	N/A
Sizing Physical Memory	1MB	Amount of RAM installed, either 1, 4 or 16 megabytes
Testing High Memory	ERROR at failed memory address	Message only on failure. Record all information to this point and contact Lucent InterNetworking Systems Technical Support.
Found 5 Ports	N/A	Number of serial ports found, including s0.
ether0 active	N/A	Ethernet interface found. IRX-211 also prints a message for ether1.
Running ComOS	N/A	If system hangs at this point and does not print the next message, the configuration flash memory has been corrupted. Refer to the PortMaster Troubleshooting Guide.
PortMaster Console login:	N/A	System up and running.