Cisco Catalyst 4500 Series Command Reference Manual page 644

redundancy config-sync mismatched-commands
Note
You can verify the ignored MCL with the show redundancy config-sync ignored mcl command.
If SSO mode cannot be established between the active and standby supervisor engines because of an
incompatibility in the configuration file, a mismatched command list (MCL) is generated at the active
supervisor engine and a reload into RPR mode is forced for the standby supervisor engine. Subsequent
attempts to establish SSO, after removing the offending configuration and rebooting the standby
supervisor engine with the exact same image, might cause the
C4K_REDUNDANCY-2-IOS_VERSION_CHECK_FAIL and
ISSU-3-PEER_IMAGE_INCOMPATIBLE messages to appear because the peer image is listed as
incompatible. If the configuration problem can be corrected, you can clear the peer image from the
incompatible list with the redundancy config-sync ignore mismatched-commands EXEC command
while the peer is in a standby cold (RPR) state. This action allows the standy supervisor engine to boot
in standby hot (SSO) state when it reloads.
Examples This example shows how to validate removal of entries from the MCL:
Switch# redundancy config-sync validate mismatched-commands
Switch#
Related Commands Command
show redundancy config-sync
Catalyst 4500 Series Switch Cisco IOS Command Reference—Release IOS XE 3.4.0SG and IOS 15.1(2)SG)
2-586
If you ignore the mismatched commands, the out-of-sync configuration at the active supervisor
engine and the standby supervisor engine still exists.
Chapter 2 Cisco IOS Commands for the Catalyst 4500 Series Switches
Description
Displays an ISSU config-sync failure or the ignored mismatched
command list (MCL).
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