![Transition Networks S4224 Web User Manual Download Page 536](http://html1.mh-extra.com/html/transition-networks/s4224/s4224_web-user-manual_1152119536.webp)
Transition Networks
S4224 Web User Guide
33558 Rev. C
Page 536 of 669
Maintenance > Software
The S4224
Maintenance
>
Software
path lets you select the
Upload
,
Image
Select
, and
Peripheral
Device
sub-menus.
Software Upload via the Maintenance > Software > Upload Path
The S4224 supports firmware upgrade via TFTP and HTTP from the
Maintenance
>
Software
>
Upload
path (the Web uses HTTP, and the CLI uses TFTP). All configuration settings are retained when the
device resets after successful upgrade operation. The firmware image has a CRC mechanism to prevent
a corrupted image to be loaded onto the S4224. The upgrade procedure handles error conditions such as
a network disruption during upgrade, power outages, TFTP/HTTP connection issues, etc. and will
continue to operate using the installed image in case of upgrade failures.
Note
: It is a good idea to create a backup of the configuration before upgrading the firmware. The S4224
IP address is reset to default during firmware upgrade.
The S4224 does not disrupt any data plane traffic during the image download process; the data traffic will
experience a loss when the device resets to boot with the new image, but the service is restored
immediately after the S4224 is configured. The
.dat
file contains a checksum which is validated after
upload. If power outage occurs while writing the flash, the flash upgrade will fail. This is why there is an
alternate image to serve as an alternate or replacement file. The Software Upload page is shown below in
MS Windows (top) and Mozilla Firefox.
This page lets you update the S4224 firmware.
Warning
:
While the firmware is being updated, Web access appears to be defunct. The front LED flashes
Green/Off with a frequency of 10 Hz while the firmware update is in progress.
Do not restart or power
off the device at this time
or the S4224 may fail to function afterwards.
Activate Image Now
: Check to activate and reboot immediately. Uncheck to activate the image
manually later. By default the image will not be activated and the device will not reboot.
Browse
to the location of a software image and click the
Upload
button.
After the software image is uploaded, a page announces that the firmware update is initiated.
After about a minute, the firmware is updated.
If "Activate Image Now" is checked, then all managed switches in the stack will automatically reboot. the
switch will automatically reboot.