Specifications

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Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide
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Chapter 4 Getting Started with CMS
Saving Your Configuration
These switches do not support read-only mode on CMS:
• Catalyst 1900 and Catalyst 2820
• Catalyst 2900 XL switches with 4-MB CPU DRAM
In read-only mode, these switches appear as unavailable devices and cannot be configured from CMS.
HTTP Access to CMS
CMS uses Hypertext Transfer Protocol (HTTP), which is an in-band form of communication with the
switch through any one of its Ethernet ports and that allows switch management from a standard web
browser. The default HTTP port is 80.
If you change the HTTP port, you must include the new port number when you enter the IP address in
the browser Location or Address field (for example, http://10.1.126.45:184 where 184 is the new HTTP
port number).
Do not disable or otherwise misconfigure the port through which your management station is
communicating with the switch. You might want to write down the port number to which you are
connected. Changes to the switch IP information should be done with care.
For information about connecting to a switch port, refer to the switch hardware installation guide.
Saving Your Configuration
Note The Save Configuration option is not available if your switch access level is read-only. For more
information about the read-only access mode, see the “Access Modes in CMS” section on page 4-30.
Tip As you make cluster configuration changes (except for changes to the Topology view and in the
Preferences window), make sure that you periodically save the configuration from the command switch.
The configuration is saved on the command and member switches.
The front-panel images and CMS windows always display 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 configuration file, which is the
startup configuration used each time the switch restarts. If you do not save your changes, they are lost
when the switch restarts.
Note Catalyst 1900 and Catalyst 2820 switches automatically save configuration changes to Flash memory as
they occur.