HP A7500 Series Command Reference Manual page 152

Upgrade all the other MPUs one by one.
• Member switch-based ISSU upgrade. When this method is applied, an IRF fabric is considered an
integral system. The upgrade process is as follows:
Reboot the slave switch to upgrade it when the master operates normally.
Perform an active and standby switchover, making the slave switch become the new master.
Reboot the former master, and then the entire IRF fabric is upgraded. This method upgrades each
member switch through switch reboot, causing a brief interruption to the traffic passing through the
member switches.
Before executing the issu load command, verify the following conditions:
The new system software image and the old system software image exist on the active MPUs and the
•
standby MPUs of the master and slave switches, and the files are saved on the root directory of the
storage medium of the same type.
All active MPUs and standby MPUs use the same system software image.
•
All MPUs run the same version.
•
• With incompatible versions, save the configuration with the save command.
To avoid upgrade failure, do not modify the configuration (especially the IRF port), reboot a card, plug
and unplug the cables connecting physical IRF ports, perform an active and standby switchover, delete
or modify the system software image, or load or unload a hotfix during the ISSU upgrade.
Examples
# In the ISSU upgrade process in standalone mode, upgrade the standby MPU in slot 1 with upgrade file
new.app, which is basic-level compatible with the current running system software image.
<Sysname> system-view
[Sysname] issu load file new.app slot 1
This command will begin ISSU, and the specified board will reboot and be upgraded. Please
save the current running configuration first; otherwise, the configuration may be
lost.Continue? [Y/N]:y
# In the member switch-based ISSU upgrade process in IRF mode, upgrade the slave switch with the
member ID of 2 by using upgrade file new.app, which is basic-level compatible with the current running
system software image on the master.
<Sysname> system-view
[Sysname] issu load file new.app chassis 2
This command will begin ISSU, and the specified board will reboot and be upgraded. Please
save the current running configuration first; otherwise, the configuration may be
lost.Continue? [Y/N]:y
# In the MPU-based ISSU upgrade process in IRF mode, upgrade the standby MPU of the master with the
member ID of 1 by using upgrade file new.app, which is basic-level compatible with the current running
system software image on the global active MPU.
<Sysname> system-view
[Sysname] issu load file new.app chassis 1 slot 1
This command will begin ISSU, and the specified board will reboot and be upgraded. Please
save the current running configuration first; otherwise, the configuration may be
lost.Continue? [Y/N]:y
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