Chapter 3 Hardware Troubleshooting 27

To restart the system from the BCM450 hardware, use the reset button as described in Hardware reset functions on page 27.

Table 6 Hardware reset functions

Function

Description

Impact

 

 

 

Press the Reset button on the

Shuts down and reboots the

Stops all services and restarts the

BCM450 system

BCM450 system

system.

 

 

This operation does not affect

 

 

configuration parameters or

 

 

programming.

 

 

 

Press and hold the Reset

Immediately shuts down the

Immediately stops and restarts the

button on the BCM450 system

BCM450 system

operating system. This operation

for 5 seconds

 

does not affect configuration

 

 

parameters or programming, but can

 

 

result in data loss. Use only if the

 

 

BCM450 system is non-responsive.

 

 

 

Note: When you restart the BCM450 system using the Reset button, the system will wait for 10 seconds for a user to log into the Maintenance CLI. If a user does not log in during that time period, the BCM450 will reboot to the Main OS.

Power on self test

The power on self test (POST) feature tests basic hardware functionality when the BCM450 system powers up, and stores the results in a log file. You can view the log file for hardware failures.

Viewing the POST log file

1Use Element Manager to transfer the log files to your PC. Refer to the “BCM450 Log management” chapter in the BCM450 Administration and Security Guide (NN40160-601) for information about how to transfer log files.

2View the bootloader.log file.

3Check the log file for errors. Figure 5 on page 28 shows a bootloader.log file with no errors; Figure 6 on page 28 shows a file with errors.

BCM450 Troubleshooting Guide

Page 27
Image 27
Nortel Networks BM450 manual Power on self test, Viewing the Post log file, Hardware reset functions