This procedure is intended for internal use only.
This procedure switches between already saved switch configurations. It is used to quickly switch between configurations that are already loaded on the switches.
To save switch configurations, refer to the Configuration Management procedure.
When switching between configurations, the procedure must be followed on all management switches.
Spine switches have three total configuration files/checkpoints.
Leaf-BMC switches have have two configuration files/checkpoints.
The procedure depends on the switch manufacturer:
(sw#) List the checkpoint files.
Ensure that the proper checkpoint files exist.
show checkpoint | include CSM
Example output:
CSM1_2_FRESH_INSTALL_CANU_1_3_2 latest User 2022-04-01T20:11:57Z GL.10.09.0010
CSM1_2_UPGRADE_CANU_1_3_2 checkpoint User 2022-04-01T18:57:06Z GL.10.09.0010
CSM1_0_CANU_1_2_4 checkpoint User 2022-03-15T21:37:11Z GL.10.09.0010
(sw#) Rollback to desired checkpoint.
checkpoint rollback CSM1_2_UPGRADE_CANU_1_3_2
(sw#) Reset ACLs.
In some rare cases, ACLs will not work as expected. In order to prevent this, run the following command after switching checkpoints.
access-list all reset
(sw#) List the configuration files.
Ensure that the proper configuration files exist.
dir config
Example output:
Directory contents for folder: config
Date (modified) Size (bytes) Name
--------------------- ------------ ------------------------------------------
2022-02-08T16:31:42Z 112189 csm1.0.xml
2022-02-08T16:28:31Z 112189 csm1.2.xml
2022-02-08T16:30:23Z 112189 startup.xml
(sw#) Copy the desired configuration to the startup configuration.
copy config://csm1.0.xml config://startup.xml
Copy completed will be returned if successful.
(sw#) Reboot the switch without saving configuration.
reload
Example output:
System configuration has been modified. Save? [yes/no]:no
(sw#) View the configuration files.
Ensure that the proper backup configurations exist.
show configuration files
Example output:
csm1.0.canu1.1.21 (active)
csm1.0.canu1.1.21.bak
csm1.2.fresh_install_canu1.1.21
csm1.2.fresh_install_canu1.1.21.bak
csm1.2.upgrade_canu1.1.21
csm1.2.upgrade_canu1.1.21.bak
initial
initial.bak
Active configuration: csm1.0.canu1.1.21
Unsaved changes : yes
(sw#) Switch to the desired configuration.
configuration switch-to csm1.2.upgrade_canu1.1.21
Example output:
This requires a reboot.
Type 'yes' to confirm: yes
The switch will then reboot to chosen configuration.