5-6
Switch Memory and Configuration
Using the CLI To Implement Configuration Changes
Switch Memory and
Configuration
■Manually enter the earlier values you had for the c hanged settings. (This
is recommended if you want to restore a small number of parameter
settings to their previous boot-up values.)
■Update the running-config file to match the startup-config file by reboot-
ing the switch. (This is recommended if you want to restore a larger
number of parameter settings to their previous boot-up values.)
If you use the CLI to change a parameter setting, and then execute the boot
command without first executing the write me mory command to save the
change, the switch prompts you to speci fy whether to save the changes in the
current running-config file. For example:
Figure 5-2. Boot Prompt for an Unsaved Configuration
The above prompt means that one or more parameter settings in the running-
config file differ from their counterparts in the startup-config file and you need
to choose which config file to retain and which to discard.
■If you want to update the startup-config file to match the running-config
file, press [Y] for "yes". (This means that the changes you entered in the
running-config file will be saved in the startup-config file.)
■If you want to discard the changes you made to the running-config file so
that it will match the startup-config file, then press [N] for "no". (This means
that the switch will discard the changes you entere d in the running-config
file and will update the running-config file to match the startup-config
file.)
Note If you use the CLI to make a change to the running-config file, you should
either use the write memory command or select the save o ption allowed during
a reboot (figure 5-2, above) to save the change to the startup-config file. That
is, if you use the CLI to change a parameter setting, but then reboot the switch
HP4108(config)# interface e 1 disable
HP4108(config)# boot
Device will be rebooted, do you want to continue [y/n]? y
Do you want to save current configuration [y/n]?
Press [Y] to continue the rebooting process.
You wil l t hen se e t his pro mp t.
Disables port 1 in the running configuration, which causes port 1 to bloc k all traffic.