How The Switch Starts Up; At-8900 And At-9900 Switches; Process Flow; Overrides - Allied Telesis AT-8900 Hardware Reference Manual

Hardware Reference

Process flow

Overrides

Software Release 3.0.2
C613-03092-00 REV C

How the Switch Starts Up

When the switch starts up following a power cycle or an operator-initiated
reboot (using the reset button or restart command), it performs a series of tests
and sends messages to the terminal or PC connected to the ASYN0 port. After
the switch successfully starts, a prompt is displayed for you to log in. Refer to
the Installation and Safety Guide for basic login instructions or to the Getting
Started chapter in the Software Reference.

AT-8900 and AT-9900 Switches

When an AT-8900 or AT-9900 switch starts, it performs the following
operations.
Stage This happens...
1 Self-tests run that check basic operations.
2 A prompt is displayed briefly to allow a user-override. Users can
change the startup process by pressing special keys (see
Overrides). If they enter nothing, the process continues.
3 The flash boot release is loaded as the install software.
4 Install information is checked and the switch boots up from
either the preferred or default install.
5 The startup configuration script that the user specified is
executed.
6 Startup is complete and the switch starts switching traffic if
devices connected to it are sending traffic.
The switch pauses briefly during routine startup messages to display the
following prompt:
Force EPROM download (Y)?
If you do nothing, switch software is loaded along with a preconfigured
startup script. For troubleshooting, change the process by using the following
keys.
Pressing this key... Forces the switch to...
Y Load the flash boot release with no patch.
S Start with the default configuration so that any boot script is ignored.
Ctrl+D Enter diagnostics mode. For more information, see
page 41.
17
Done by...
Boot ROM
Boot ROM
Boot ROM
Boot ROM
Preferred or
default software
Release software
"Diagnostics" on