Administrator Guide

Switch Management Commands 1925
boot auto-copy-sw allow-downgrade
Use the boot auto-copy-sw allow-downgrade command in Privileged Exec
mode to enable downgrading the firmware version on the stack member if the
firmware version on the manager is older than the firmware version on the
member.
Use the no form of the command to disable downgrading the image.
Syntax
boot auto-copy-sw allow-downgrade
no boot auto-copy-sw allow-downgrade
Default Configuration
The default value is Enable.
Command Mode
Global Configuration
User Guidelines
The configuration on the stack master switch controls the stack as if it is a
single switch. No configuration steps need to be taken on the member
switches to downgrade the firmware. Configuration migration during a
downgrade is not assured. The operator should ensure that the configuration
can be downgraded before allowing the downgrade to occur or otherwise take
steps to reconfigure the switches.
During a downgrade, meta-data regarding the stack configuration is not
migrated. For example, Ethernet ports configured as stacking ports will revert
to the default Ethernet configuration during a downgrade. When this occurs,
the stack will be split into individual switches, each of which must have the
relevant Ethernet ports individually configured as stacking before the stack
can be reconstituted.
2CSNXXX_SWUM204.book Page 1925 Monday, January 25, 2016 1:25 PM