CANOGA PERKINS 9175 Configuration Guide - Manual (Page 265)

CanogaOS Configuration Guide
44-1
44 Configuring System Image
This section describes how to archive (download and upload) software image files, which
contain the system Image file. You download a switch image file from a TFTP or FTP
server to upgrade the switch software. You can replace the current image with the new
one or keep the current image in flash memory after a download. You upload a switch
image file to a TFTP or FTP server for backup purposes. You can use this uploaded
image for future downloads to the same switch or another of the same type. The protocol
you use depends on which type of server you are using. The FTP transport mechanism
provides faster performance and more reliable delivery of data than TFTP. These
improvements are possible because FTP is built on and use the TCP/IP stack, which is
connection-oriented.
44.1 Image location on the Switch
The system image is stored as a .bin file in a directory that shows the version number.
The image is stored on the system board flash memory (flash:/boot). You can use the
show boot images privileged EXEC command to see the software version that is
currently running on your switch. In the display, check the line that begins with Current
boot image version:
44.2 Copying image files by using TFTP
You can download a switch image from a TFTP server or upload the image from the
switch to a TFTP 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; this uploaded image can be used for future downloads to the same or another
switch of the same type.
44.2.1 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.
• 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.
• For download operations, ensure that the permissions on the file are set correctly.
• During upload operations, if you are overwriting an existing file (including an
empty file, if you had to create one) on the server, ensure that the permissions on
the file are set correctly.
44.2.2 Downloading an image file by using TFTP
You can download a new image file and replace the current image or keep the current
image.