HP 7500 Switch Series - HP 7500-CMW520-R6701 Release Notes

HP 7500-CMW520-R6701 Release Notes

Hewlett-Packard Development Company, L.P. 25

System software images

System software images are used at switch startup. The 7500 series support two types of system software

image:

• Main system software image: The default system software image a switch uses for startup.

• Backup system software image: The system software image a switch uses for startup when the main

system software image is invalid.

Normally, an .app file such as 7500.app is provided for upgrade, containing both the system software

image and Boot ROM image.

Patch files

Patch files are released to fix software defects. A patch file may contain one or more patches (or called

patch units). Patch files must be used together with the intended system software to fix the defects of the

latter, but not for adding or deleting features.

Upgrade methods

You can upgrade switch software by using one of the following methods:

Upgrade mode Object Remarks

• Boot ROM

• System software

• Reboot the switch to validate the upgrade.

• This method interrupts services.

Upgrade from the CLI

Patches

This method does not interrupt services, and fixes the

target system software only.

Upgrade from the boot

• Boot ROM

• System software

This method can be used when the switch cannot start up.

In-Service Software

Upgrade (ISSU)

System software

This method uses an active/standby

switchover mechanism to complete upgrade

and does not interrupt services. For more

information about ISSU, see the Fundamentals

Configuration Guide in the HP 7500 Switch

Series Configuration Guides.

NOTE:

• HP recommends you to upgrade software from the CLI when your switch operates normally.

• To ensure that the active and standby MPUs use the same software version, upgrade them by usin

the

same method.

• Make sure the system software and Boot ROM are compatible. For the compatibility between the system

software and Boot ROM, see the hardware and software compatibility matrix in the Release Notes.

• You can upgrade the Boot ROM for the LPUs from the CLI only.

• The command outputs in this document are for reference only.