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Brocade BigIron RX Series Hardware Installation Guide 131
53-1002483-03
Upgrading the BigIron RX Series software
6
• “Downgrading from version 02.5.00 (or later) to a pre-02.5.00 version”
For interface modules running versions earlier than 02.3.00
Under normal conditions, a back revision interface module can be placed in a BigIron RX chassis
and the Management module will automatically upgrade it to the interface module software
images that it has installed on the Management module. If you are running one of the versions of
Multi-Service IronWare software prior to 02.3.00, the automatic upgrade will only occur if the
interface module is installed in slots 1 - 16 of the BigIron RX-32 chassis. If you install an interface
module with a software version earlier than 02.3.00 in slots 17 - 32, it will not download a new
image and will cause instability in the BigIron RX system.
To avoid this problem, you must upgrade the software revision before installing an interface
module in slots 17 - 32 of a BigIron RX-32 chassis using one of the methods described in
“Upgrading the interface module’s IronWare image”.
Separation of boot and monitor images
Beginning with version 02.5.00 and later of the Multi-Service IronWare software, the boot and
monitor images no longer need to be upgraded with each release.
• The Boot images no longer need to be upgraded with each release and in fact will almost never
need to be changed. This eliminates one extra step in the upgrade process, thus simplifying
the upgrade procedure, reducing the chance of operator error and leading to a faster upgrade
process.
• The Monitor image no longer needs to be upgraded with each release. In release 02.5.00, all
OS functions have been moved out of the Monitor image into the IronWare image. This has
simplified the Monitor image and it no longer needs to be upgraded every time, thus
eliminating another step in the upgrade process.
• The first version of the boot and monitor image supporting this separation is 02.5.00
Upgrading to version 02.5.00 (or later) from a pre- 02.5.00 version
The procedure for upgrading the software images to version 02.5.00 (or later) from a pre-02.5.00
version is the same as for previous versions. When performing this upgrade, you should upgrade
the Boot, Monitor, and IronWare images in addition to any FPGA images that need to be upgraded.
Follow the steps given below for this upgrade.
1. Determine the versions of the software images currently installed and running on the router.
Use the procedures described in “Displaying flash memory and version information” on
page 124. Using this procedure you can determine the images currently installed.
2. Upgrade the Management and Interface Modules IronWare Image with the Unified Image.
Use the procedures described in “Unified software image upgrade to upgrade release 02.6.00
and later”.
3. Reboot the Management Module.
Use the procedures described in “Rebooting the management module” on page 139.