Downgrade the Software
Perform this procedure to downgrade the switch from the current trusted version to a previous release.
Important
MACsec connectivity association (CA) configurations fail during downgrade. If you plan to downgrade MACsec to an earlier version, delete the MACsec CA entries, perform the downgrade, and then reconfigure the MACsec CA entries. This applies to both 2AN and 4AN modes.
Before you begin
-
Ensure that you have a previous version installed.
-
Ensure you have a compatible configuration file if you downgrade to an earlier release. New releases contain significant enhancements, which cannot be used in previous software versions.
About this task
Note
The image file name is switch dependent. See Fabric Engine Release Notes for information about file names.
Procedure
- Restart the switch:
reset
Important
After you restart the system, you have the amount of time configured for the commit timer to verify the software change and commit the software to gold. If you do not commit the software to gold and auto-commit is not enabled, the system restarts with the last known working version after the commit timer expires. This feature ensures you can regain control of the system if an upgrade fails. By default, auto-commit is enabled.
- Commit the software
change:
software commit
Important
If you disable the auto-commit feature, you must run the software commit command manually before the commit timer expires to commit the new software version, otherwise the system restarts automatically to the previous (committed) version. By default, auto-commit is enabled.
Variable Definitions
The following table defines parameters for the software command.
|
Variable |
Value |
|---|---|
|
activate WORD<1-99> |
Specifies the name of the software release image. |
|
add WORD<1-99> |
Specifies the path and version of the compressed software release archive file. |
|
remove WORD<1-99> |
Specifies the path and version of the compressed software release archive file. |