Cisco Systems 3750E Benutzerhandbuch
3-16
Catalyst 3750-E and 3560-E Switch Software Configuration Guide
OL-9775-02
Chapter 3 Assigning the Switch IP Address and Default Gateway
Modifying the Startup Configuration
Note
For complete syntax and usage information for the boot loader commands and environment variables,
see the command reference for this release.
see the command reference for this release.
describes the function of the most common environment variables.
Table 3-4
Environment Variables
Variable
Boot Loader Command
Cisco IOS Global Configuration Command
BOOT
set BOOT filesystem:/file-url ...
A semicolon-separated list of executable files
to try to load and execute when automatically
booting. If the BOOT environment variable is
not set, the system attempts to load and execute
the first executable image it can find by using a
recursive, depth-first search through the flash
file system. If the BOOT variable is set but the
specified images cannot be loaded, the system
attempts to boot up the first bootable file that it
can find in the flash file system.
to try to load and execute when automatically
booting. If the BOOT environment variable is
not set, the system attempts to load and execute
the first executable image it can find by using a
recursive, depth-first search through the flash
file system. If the BOOT variable is set but the
specified images cannot be loaded, the system
attempts to boot up the first bootable file that it
can find in the flash file system.
boot system {filesystem:/file-url ...| switch
{number | all}}
{number | all}}
Note
The switch {number | all} keywords are
supported only on Catalyst 3750-E
switches.
supported only on Catalyst 3750-E
switches.
Specifies the Cisco IOS image to load during the
next boot cycle and the stack members on which
the image is loaded. This command changes the
setting of the BOOT environment variable.
next boot cycle and the stack members on which
the image is loaded. This command changes the
setting of the BOOT environment variable.
MANUAL_BOOT
set MANUAL_BOOT yes
Decides whether the switch automatically or
manually boots.
manually boots.
Valid values are 1, yes, 0, and no. If it is set to
no or 0, the boot loader attempts to
automatically boot up the system. If it is set to
anything else, you must manually boot up the
switch from the boot loader mode.
no or 0, the boot loader attempts to
automatically boot up the system. If it is set to
anything else, you must manually boot up the
switch from the boot loader mode.
boot manual
Enables manually booting the switch during the
next boot cycle and changes the setting of the
MANUAL_BOOT environment variable.
next boot cycle and changes the setting of the
MANUAL_BOOT environment variable.
The next time you reboot the system, the switch is
in boot loader mode. To boot up the system, use
the boot flash:filesystem:/file-url boot loader
command, and specify the name of the bootable
image.
in boot loader mode. To boot up the system, use
the boot flash:filesystem:/file-url boot loader
command, and specify the name of the bootable
image.
CONFIG_FILE
set CONFIG_FILE flash:/file-url
Changes the filename that Cisco IOS uses to
read and write a nonvolatile copy of the system
configuration.
read and write a nonvolatile copy of the system
configuration.
boot config-file flash:/file-url
Specifies the filename that Cisco IOS uses to read
and write a nonvolatile copy of the system
configuration. This command changes the
CONFIG_FILE environment variable.
and write a nonvolatile copy of the system
configuration. This command changes the
CONFIG_FILE environment variable.
SWITCH_NUMBER
set SWITCH_NUMBER
stack-member-number
stack-member-number
Changes the member number of a stack
member.
member.
switch current-stack-member-number renumber
new-stack-member-number
new-stack-member-number
Changes the member number of a stack member.
Note
This command is supported only on
Catalyst 3750-E switches.
Catalyst 3750-E switches.
SWITCH_PRIORITY
set SWITCH_PRIORITY
stack-member-number
stack-member-number
Changes the priority value of a stack member.
switch stack-member-number priority
priority-number
priority-number
Changes the priority value of a stack member.
Note
This command is supported only on
Catalyst 3750-E switches.
Catalyst 3750-E switches.