XKL DarkStar DRA, Руководство пользователя

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20
DarkStar User Guide
3: Software
www.xkl.com
When powered up for the first time with an empty or non-existent startup configuration, a DarkStar system performs
the following steps:
1.
MiniBoot, a lightweight boot loader, loads from the startup gateware and executes a larger, more functional boot loader,
known as Boot, from the startup boot location in the startup flash memory.
2.
Boot attempts to obtain configuration information via DHCP and Trivial File Transfer Protocol (TFTP). If Boot successfully
obtains the configuration file, Boot passes the configuration to DXMOS. Otherwise, DXMOS is started without configu-
ration information.
3.
After a delay (10 seconds by default), Boot loads DXMOS from the image location specified in the configuration file or from
the startup-image by default. The following message appears:
[Type Ctrl-C to abort, or any other key to boot now.]
If you press
CTRL+C
before the automatic boot completes, the
Boot>
prompt appears, allowing you to issue low-level
configuration commands.
To continue booting DXMOS from the
Boot>
prompt, you must issue the following command:
Boot>
boot
To boot the system using the factory default image, configuration, and gateware:
• Press and hold the side reset button for three seconds. The LEDs on the front panel flash when the DarkStar system resets
successfully. Please note that booting from the factory default image interrupts customer traffic.
To reset the software only:
•
Press and immediately release the front reset button. Software reset maintains power and the state of customer traffic if
the running configuration is identical to the startup configuration.
To warm reboot (without a power cycle):
• Press and hold the front reset button for three seconds. Refer to the figure “Hardware Reset Buttons” on page 22 to locate
the front reset button. Warm reboot reloads the system gateware and software, and maintains power and the state of all
transport interfaces if the running configuration is identical to the startup configuration. The green, amber, and red LEDs
on the front panel flash when warm reboot succeeds. This option is the hardware equivalent of the DXMOS
reload
command.
To cold reboot (with a power cycle):
• A cold reboot is performed using an internal or external power cycle.
•
An internal power cycle is accomplished using the side reset button.
• An external power cycle is accomplished by disconnecting both power cords.
•
Run the
show version
command to indicate whether a power cycle has occurred since the last reload, and if it has,
whether it was an internal or external power cycle. When managing a DarkStar system remotely, this information may be
helpful in determining the cause of a power cycle.
NOTE
If changes are made to
running-config
and the DarkStar system reloads without saving changes
to
startup-config
, changes made to the
running-config
will be lost. As a result, when the
system reboots, the previous
startup-config
will take effect and the loss of
running-config
changes may results in a loss of customer traffic.