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Catalyst 4500 Series Switch, Cisco IOS Software Configuration Guide - Cisco IOS XE 3.9.xE and IOS 15.2(5)Ex
Chapter 3 Configuring the Switch for the First Time
Modifying the Supervisor Engine Startup Configuration
You m u st reload the switch for any changes to take effect.
Modifying the Boot Field
To modify the boot field from the software configuration register, perform this task:
To modify the configuration register while the switch is running Cisco IOS software, perform this task:
Modifying the Configuration Register Value for Wireless Mode
On Catalyst 4500E Series Switches with Supervisor Engine 8-E, to boot the system in wireless mode,
perform this task:
Command Purpose
Step 1
Switch# show version
Determines the current configuration register setting.
Step 2
Switch# configure terminal
Enters configuration mode, and specify the terminal option.
Step 3
Switch(config)# config-register value
Modifies the existing configuration register setting to reflect
the way you want the switch to load a system image.
Step 4
Switch(config)# end
Exits configuration mode.
Step 5
Switch# reload
Reboots the switch to make your changes take effect.
Command Purpose
Step 1
Switch# enable
Enters the privileged EXEC mode. Enter the password if
required.
Step 2
Switch# configure terminal
Enters configuration mode, and specifies the terminal option.
Step 3
Switch(config)# config-register 0x102
Sets the contents of the configuration register to the specified
value, where value is a hexadecimal number preceded by 0x
(see Table 3-3 on page 3-27).
Step 4
Switch(config)# end
Exits configuration mode. The new value settings are saved to
memory; however, the new settings do not take effect until the
system is rebooted.
Step 5
Switch# show version
Displays the configuration register value currently in effect.
The value is displayed on the last line of the screen display, as
shown in this sample output:
Configuration register is 0x141 (will be 0x102 at
next reload)
Step 6
Save your settings.
See the “Saving the Running Configuration Settings to Your
Start-Up File” section on page 3-10. Note that configuration
register changes take effect only after the system reloads, such
as when you enter a reload command from the console.
Step 7
Switch# reload
The new configuration register value takes effect with the next
system boot up.
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