255-700-239
11-23
PacketStar
®
PSAX 4500 Multiservice Media Gateway User Guide
, Issue 2
Release 8.0.0
Chapter 11 Upgrading PSAX System Software
Upgrading Firmware
System Updating of Firmware Drivers
The default firmware driver is a binary file that is automatically downloaded
from the PSAX system software resident on the CPU module to the I/O and
server modules, and is used to initialize the module. On the Firmware Ver-
sion Control window (see Figure 11-7), the default driver is indicated with
an asterisk after the filename. You can choose to update the module with a
nondefault driver if one or more are available. Most I/O and server modules
have only the default driver available.
Note:
We recommend that you use the default driver unless you know
specifically which nondefault driver you should use. The default
driver contains the most current version of the firmware.
The PSAX system selects only the default driver when the I/O or server mod-
ule initializes for the first time. When selecting the version of the firmware
you want to download to the module, the drivers displayed represent the
only downloadable versions for the module selected in the Card Type field.
During the future upgrades of the PSAX system software or a firmware patch,
one of the three following scenarios can occur, depending on which driver
type (default or nondefault) you initially selected:
•
Scenario 1: the current driver is the default, and a future upgrade driver
includes the new default and possibly other nondefault drivers.
If you select the default driver on the Firmware Version Control window,
and you later upgrade the system software to a version that has the default
and other nondefault drivers, the system will upgrade the driver to the
next version of the default driver.
•
Scenario 2: the current driver is the nondefault driver
abc
, and a future
upgrade driver includes the new default
and the nondefault driver
abc
.
If you select the nondefault driver
abc
on the Firmware Version Control
window, and you later upgrade the system software to a version that
includes the nondefault driver
abc
, the system will not upgrade the current
nondefault driver
abc
.
•
Scenario 3: the current driver is the nondefault driver
abc
; and a future
upgrade driver includes the new default driver and a new nondefault
driver other than the nondefault driver
abc
.
If you select the nondefault driver
abc
on the Firmware Version Control
window, and you later upgrade the system software to a version that does
not include the nondefault driver
abc
, the system will not upgrade the cur-
rent nondefault driver
abc
. You will get a message that the nondefault
driver
abc
cannot be found. You can then either select another available
driver or keep the
nondefault driver
abc
. For guidance, seek the advice of
Lucent Technologies NetworkCare.
Selecting Firmware Drivers
You can select either the default driver or a nondefault driver from the avail-
able drivers:
•
If you select the default driver, you can update the firmware of any I/O or
server module currently selected in a given slot.
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