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1. Download the upgrade software image file.
2. (Optional.) Preload the Boot ROM image to the Boot ROM.
If a Boot ROM upgrade is required, you can perform this task to shorten the subsequent upgrade
time. This task helps avoid upgrade problems caused by unexpected electricity failure.
If you skip this task, the device upgrades the Boot ROM automatically when it upgrades the startup
software images.
The Boot ROM image preloaded into the Boot ROM does not affect the device running status.
3. Specify the image file as the startup software image file.
4. If you are upgrading a standalone device, reboot the device. If you are upgrading an IRF fabric,
reboot the entire IRF fabric.
5. Verify the upgrade.
Preparing for the upgrade
1. Use the display version command to verify the current Boot ROM image version and startup
software version.
2. Use the release notes for the upgrade software version to evaluate the upgrade impact on your
network and verify the following items:
{ Software and hardware compatibility.
{ Version and size of the upgrade software.
{ Compatibility of the upgrade software version with the current Boot ROM image and startup
software image version.
3. Use the dir command to verify that all IRF member devices have sufficient storage space for the
upgrade images. If the storage space is not sufficient, use the delete command to delete unused
files. For more information, see "Managing the file system."
4. Conf
ig
ure FTP or TFTP settings.
5. Use FTP or TFTP to download the upgrade image file to the root directory of the storage medium
on the master device.
For more information about FTP and TFTP, see "Configuring FTP" and "Configuring TFTP."
Preloading the Boot ROM image to Boot ROM
Ste
Command
Remarks
1. Load the upgrade Boot ROM
image to the Normal area of
Boot ROM.
bootrom update file file-url slot
slot-number-list
Specify the downloaded software
image file for the file-url argument.
The new Boot ROM image takes
effect at a reboot.
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