58
x900 Series Switch and SwitchBlade
®
x908
C613-03092-00 REV J
Diagnostics
The AlliedWare and AlliedWare Plus operating systems include a set of
diagnostic programs that perform basic checks of all system components.
These diagnostics do not run with normal operating code and require that the
system be totally dedicated to their use. The switch does not perform switching
operations when diagnostics are running.
This section describes the diagnostics available in the AlliedWare operating
system. For information about diagnostics available in the AlliedWare Plus
operating system, see the Startup Sequence chapter of the AlliedWare Plus™
Operating System Software Reference.
Caution
Diagnostics are designed to be run by service personnel only. This
section is not intended as a guide to diagnostics software. Detailed knowledge
of how the switch hardware functions is necessary in order to effectively use
diagnostic programs. For more information, contact your authorised Allied
Telesis distributor or reseller.
Enabling
diagnostics mode
1.
Connect a terminal to the RS-232 terminal port.
Use a terminal cable to connect a terminal to the RS-232 port (ASYN0/
CONSOLE) on the switch. For more information on terminal cables, see
“RS-232 Terminal and Modem Cables” on page 30
.
Set the terminal communication parameters as follows:
•
Baud rate: 9600
•
Data bits: 8
•
Parity: None
•
Stop bits: 1
•
Flow control: Hardware
For more information, see
“Using Windows Terminal and HyperTerminal”
on page 44
.
2.
Restart the switch.
To restart the switch, use a small diameter pin to press the recessed Reset
button on the front panel of the switch. You can also log in at the terminal
and enter the command:
restart reboot
How to log in is described in the Installation and Safety Guide.
3.
Enable diagnostics mode during self-tests at startup.
The switch pauses briefly during its self-tests to allow an override.
For the AT-8948, x900-48FE, x900-48FS, and AT-9900 series switches, the
following prompt is displayed:
Force EPROM download (Y)?
For AT-9924Ts, x900-24XT, x900-24XT-N, and x900-24XS switches, the
following prompt is displayed:
Boot fallback software (Y)?
Press Ctrl+D to enable diagnostics mode. Press Ctrl+D just once to ensure
you send no other characters to the switch.
