Brocade Fabric OS Troubleshooting and Diagnostics Guide (Supporting Fabric OS v7.3.0) - Manual (Page 76)

60 Fabric OS Troubleshooting and Diagnostics Guide
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Considerations for downgrading firmware
5
Platform
The following system message pertains to switch features or fabric-wide settings that must be
removed or disabled before downgrading the firmware.
Message Downgrade is not allowed because VF is enabled. Please run "lscfg - -config" and "lscfg - -delete"
commands to remove the non-default LS first, then run "fosconfig - -disable vf" to disable VF before
proceeding.
Probable cause and recommended action
You cannot downgrade because Virtual Fabrics is enabled. Delete the logical switches, delete the
base switch, and disable Virtual Fabrics prior to downgrading the firmware.
Routing
The following system message refers to any route settings that must be changed prior to
downgrading the switch’s firmware.
Message Please use "configure" to clear the location ID.
Probable cause and recommended action
If the switch is running v7.1.0 or later, and Location-Oriented Link Aggregation is configured, you
cannot downgrade the switch to v7.0.0 or earlier.
Use the configure command to clear the location ID.