You can copy images files to or from an FTP server.
The FTP protocol requires a client to
send a remote username and password on each FTP request to a server. When you
copy an image file from the switch to a server by using FTP, the Cisco IOS
software sends the first valid username in this list:
•
The username specified in the archive download-sw or archive
upload-sw privileged EXEC
command if a username is specified.
•
style='orphans: auto;widows: 1;-webkit-text-stroke-width: 0px;word-spacing:
0px' border=0 v:shapes="_x0000_i1026">The username set by the ip ftp username username global configuration command if the
command is configured.
•
The password specified in the archive
download-sw or archive upload-sw privileged EXEC command if a password
is specified.
•
The password set by the ip ftp password password global configuration command if the
command is configured.
•
style='orphans: auto;widows: 1;-webkit-text-stroke-width: 0px;word-spacing:
0px' border=0 v:shapes="_x0000_i1030">The switch forms a password
named username@switchname.domain. The variable username is the username associated with the
current session, switchname is the configured hostname, and domain is the domain of the switch.
The username and password must be
associated with an account on the FTP server. If you are writing to the server,
the FTP server must be properly configured to accept the FTP write request from
you.
Use the ip
ftp username and ip ftp password commands to specify a username and
password for all copies. Include the username in the archive download-sw or archive
upload-sw privileged EXEC
command if you want to specify a username only for that operation.
If the server has a directory structure,
the image file is written to or copied from the directory associated with the
username on the server. For example, if the image file resides in the home
directory of a user on the server, specify that user's name as the remote
username.
•
Ensure that the switch has a route to the FTP server. The switch and
the FTP server must be in the same subnetwork if you do not have a router to
route traffic between subnets. Check connectivity to the FTP server by using
the ping command.
•
If you are accessing the switch through the console or a Telnet
session and you do not have a valid username, make sure that the current FTP
username is the one that you want to use for the FTP download. You can enter
the show users privileged EXEC command to view the
valid username. If you do not want to use this username, create a new FTP
username by using the ip ftp
username username global configuration command. This new
name will be used during all archive operations. The new username is stored in
NVRAM. If you are accessing the switch through a Telnet session and you have a
valid username, this username is used, and you do not need to set the FTP
username. Include the username in the archive
download-sw or archive upload-sw privileged EXEC command if you want to
specify a username for that operation only.
•
When you upload an image file to the
FTP server, it must be properly configured to accept the write request from the
user on the switch.
Uploading an Image
File By Using TFTP
You can upload an image
from the switch to a TFTP server. You can later download this image to the
switch or to another switch of the same type.
Use the upload feature only
if the web management pages associated with the embedded device manager have
been installed with the existing image.
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Make sure the TFTP server is properly
configured; see the "Preparing
to Download or Upload an Image File By Using TFTP" section.
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The archive
upload-sw privileged EXEC command builds an image file on the server
by uploading these files in order: info, the Cisco IOS image, and the web
management files. After these files are uploaded, the upload algorithm creates
the file format.
You can download a switch
image from an FTP server or upload the image from the switch to an FTP server.
You download a switch image
file from a server to upgrade the switch software. You can overwrite the
current image with the new one or keep the current image after a download.
You upload a switch image
file to a server for backup purposes. You can use this uploaded image for
future downloads to the switch or another switch of the same type.
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