Chapter 3 Getting Started with the CLI
Saving Configuration Changes
3-10
Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide
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Saving Configuration Changes
The show command always displays the running configuration of the switch.
When you make a configuration change to a switch or switch cluster, the change
becomes part of the running configuration. The change does not automatically
become part of the config.txt file in Flash memory, which is the startup
configuration used each time the switch restarts. If you do not save your changes
to Flash memory, they are lost when the switch restarts.
To save all configuration changes to Flash memory, you must enter the write
memory command in privileged EXEC mode.
Note
The write memory command does not apply to the Catalyst 1900 and
Catalyst 2820 switches, which automatically save configuration changes to
Flash memory as they occur.
Tips
As you make cluster configuration changes, make sure you periodically save
the configuration. The configuration is saved on the command and member
switches.
Where to Go Next
The rest of this guide provides descriptions of the software features and general
switch administration.
Table 4-2 on page 4-9
lists the defaults for all key features
and gives the page numbers in this guide where the feature is described and CLI
procedures are provided.
Refer to the Catalyst 2900 Series XL and Catalyst 3500 Series XL Command
Reference for complete descriptions of the switch commands.
Refer to the Cisco IOS Release 12.0 documentation on Cisco.com for information
about the standard Cisco IOS Release 12.0 commands.
