3Com SECPATH U200-CS Installation Manual page 84

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<H3C>
Table 6-8 Description on the display information of the dir command
Display information
'.' Directory of flash:/
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Step3 Upgrade the application.
Using TFTP, you can download an application file from the server to the U200 series device, and
overwrite the original main application file to implement the application program upgrade. The upgraded
application file takes effect when the device reboots.
# Download application file main.bin from the TFTP server to the device.
<H3C> tftp 192.168.80.200 get main.bin main.bin
The file main.bin exists. Overwrite it? [Y/N]:y
Verifying server file...
Deleting the old file, please wait...
File will be transferred in binary mode
Downloading file from remote TFTP server, please wait... \
TFTP: 11611272 bytes received in 65 second(s)
File downloaded successfully.
When you download an application file, if a file having the same name with the downloaded file
exists on the U200 series device, the system prompts whether to overwrite the file on the device.
You need to select Y or N for confirmation.
For details about the tftp command, see the accompanying documentation.
You can upgrade a configuration file using the same method as upgrading an application file. A
configuration file can be modified by a text editor. You can modify a configuration file and then
download the modified configuration file to the device, and the modification takes effect after the
device reboots.
Step4 Back up an application file
Using TFTP, you can back up an application file by uploading it to the server.
# Upload file main.bin from the device to the server, and save it as main.bin.
<H3C> tftp 192.168.80.200 put main.bin main.bin
File will be transferred in binary mode
Sending file to remote tftp server. Please wait...\
TFTP: 11611272 bytes sent in 18 second(s).
Name of the current directory.
Used space of flash memory (available space)
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Description