108 AT-8800 Series Switch User Guide
Software Release 2.6.1
C613-02039-00 REV A
How the Switch Starts UpThe sequence of operations that the switch performs when it boots are:
1. Perform startu p self tests.
2. Perform the install override option.
3. Load the FLASH boot release as the INSTALL boot.
4. Inspect and check IN STALL information.
5. Load the required release as the main boot.
6. Start the switch.
7. Execute the boot script, if one has been configured.
If a terminal is connected to asyn0, a series of status and progress messages
similar to those shown in Figure 27 on page 108 are displayed during the
startup process.
Figure 27: switch startup messages.
The startup self tests check the basic operation of the switch. If your switch
passes these tests the switch should be able to at least proceed far enough to
perform the load of the FLASH boot release and to start operating.
The install override option is designed to allow a mandatory switch boot from
the FLASH boot release. The message:
Force EPROM download (Y)?
is displayed on the terminal connected to asyn0 and the switch pauses. If you
do not press a key within a few seconds, the startup process will continue and
all steps in the sequence are executed. If the [Y], [S], [N] or [Ctrl/D] key on the
terminal are pressed immediately after the message is displayed, you can alter
the switch startup process (Table22 on page 109).
INFO: Self tests beginning.
INFO: RAM test beginning.
PASS: RAM test, 4096k bytes found.
INFO: BBR tests beginning.
PASS: BBR test, 128k bytes found.
PASS: BBR test. Battery OK.
INFO: Self tests complete
INFO: Downloading router software.
Force EPROM download (Y) ?
INFO: Initial download succeeded
INFO: Executing configuration script <boot.cfg>
INFO: Router startup complete
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