AWAN 3883/4/5 Access Server Configuration and Management Manual

Troubleshooting the AWAN Access Server
AWAN 3883/4/5 Access Server Configuration and Management Manual—424242-001
15-10
Performing Bootblock Diagnostics
Performing Bootblock Diagnostics
This subsection provides instructions for performing bootblock diagnostics for the
AWAN access server.
During the power-on sequence, the boot code learns the configuration of the chassis,
resets all devices, installs rudimentary input/output (I/O) services for diagnostics, tests
RAM and application flash memory, verifies the checksum of the nonvolatile
configuration flash memory, verifies the checksum of the application code image, and
then waits for five seconds for an Escape key at the console port before launching the
runtime environment.
Accessing the Bootblock Menu
To access the Bootblock Menu on an AWAN access server, perform the following steps:
1. Connect a personal computer (PC) running ProComm Plus to the console port. (The
console port is located on the back of AWAN access server models 3883-8, 3883-
8R, 3883-16, and 3883-16R and under the front bezel on models 3884, 3884R,
3885, and 3885R.)
2. Configure ProComm Plus as follows:
•
9600 baud, 8N1 (8 bits, no parity, 1 stop bit)
•
XON/XOFF flow control
•
ASCII upload protocol
•
Do not delete line feed characters
•
Do not append carriage return characters
•
No delays after each character or each line
3. Power on the AWAN access server.
The AWAN access server displays several startup messages, then prompts you as
follows:
Press ESC for bootblock diags...
4. Press the Esc key. If the Esc key is not pressed within 5 seconds, normal startup
continues.
5. The Bootblock Menu is displayed as shown in Figure 15-2
.
Note. Some keyboards require Control [ instead of the Esc key.