B-10
Catalyst 3550 Multilayer Switch Software Configuration Guide
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AppendixB Working with the IOS File System, Configuration Files, and Software Images
Working with Configuration Files
Creating a Configuration File By Using a Text Editor
When creating a configuration file, you must list commands logically so that the system can respond
appropriately. This is one method of creating a configuration f ile :
Step 1 Copy an existing configuration from a switch to a server.
For more information, see the “Downloading the Configuration File By Using TFTP” section on
page B-11, the “Downloading a Configuration File By Using FTP” section on page B-13, or the
“Downloading a Configuration File By Using RCP” section on page B-17.
Step 2 Open the configuration file in a text editor, such as vi or emacs on UNIX or Notepad on a PC.
Step 3 Extract the portion of the configuration file with the desired commands, and save it in a new file.
Step 4 Copy the configuration file to the appropriate server location. For example, copy the file to the TFTP
directory on the workstation (usually /tftpboot on a UNIX workstat ion) .
Step 5 Make sure the permissions on the file are set to world-read.
Copying Configuration Files By Using TFTP
You can configure the switch by using configuration files you create, download from another switch, or
download from a TFTP server. You can copy (upload) configuration files to a TFTP server for storage.
This section includes this information:
•Preparing to Download or Upload a Configuration File By Using TFTP, page B-10
•Downloading the Configuration File By Using TFTP, page B-11
•Uploading the Configuration File By Using TFTP, page B-12

Preparing to Download or Upload a Configuration File By Using TFTP

Before you begin downloading or uploading a configuration fil e by us ing T FT P, do these tasks:
•Ensure that the workstation acting as the TFTP server is properly configured. On a Sun workstation,
make sure that the /etc/inetd.conf file contains this line:
tftp dgram udp wait root /usr/etc/in.tftpd in.tftpd -p -s /tftpboot
Make sure that the /etc/services file contains this line:
tftp 69/udp
Note You must restart the inetd daemon after modifying the /etc/inetd.conf and /etc/services
files. To restart the daemon, either stop the inetd process and re start it, or ent er a fastboot
command (on the SunOS 4.x) or a reboot command (on Solaris 2.x or SunO S 5. x). For
more information on the TFTP daemon, refer to the documentation for your workst ation.
•Ensure that the switch has a route to the TFTP server. The switch and the TFTP server must be in
the same subnetwork if you do not have a router to route traffic bet ween subnets. Check connectivity
to the TFTP server by using the ping command.