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Cisco ME 3400 EthernetAccess Switch SoftwareConfiguration Guide
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AppendixB Working with the Cisco IOS File System, Configuration Files, and Software Images Working with Software Images
Preparing to Download or Upload an Image File By Using TFTP
Before you begin downloading or uploading an image file by using TFTP, 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/ser vices f iles.
To restart the daemon, either stop the inetd process and restart it, or enter a fastboot
command (on the SunOS 4.x) or a reboot command (on Solaris 2.x or SunOS 5.x). For more
information on the TFTP daemon, see the documentation for your workstation.
•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 between subnets. Check connectivity
to the TFTP server by using the ping command.
•Ensure that the image to be downloaded is in the correct directory on the TFTP server (usually
/tftpboot on a UNIX workstation).
•For download operations, ensure that the permissions on the file ar e set co rrect ly. The permission
on the file should be world-read.
•Before uploading the image file, you might need to create an empty file on the TFTP server. To
create an empty file, enter the touch filename command, where filename is the name of the file you
will use when uploading the image to the server.
•During upload operations, if you are overwriting an existing file (including an empty file, if you ha d
to create one) on the server, ensure that the permissions on the file are set correctly. Permissions on
the file should be world-write.
Downloading an Image File By Using TFTP
You can download a new image file and replace the current image or keep the current image.
Beginning in privileged EXEC mode, follow Steps 1 through 3 to download a new image fro m a TFT P
server and overwrite the existing image. To keep the current image, go to Step 3.
Command Purpose
Step1 Copy the image to the appropriate TFTP directory on the
workstation. Make sure the TFTP server is properly configured; see
the “Preparing to Download or Upload an Image File By Using
TFTP” section on page B-21.
Step2 Log into the switch through the console port or a Telnet session.