Outlines the key guidelines and limitations for software maintenance upgrade (SMU) patches.
The following guidelines and limitations apply for software maintenance upgrade (SMU) patches:
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The Graceful Upgrade feature is not supported for SMU patch installation and uninstallation.
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The Auto Firmware Update on Switch Discovery feature is not performed for switches that belong to an update group for SMU patch installation or uninstallation.
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In releases earlier than 5.2(8) and in the 6.0(1) and 6.0(2) releases, an SMU patch cannot modify the Cisco Application Policy Infrastructure Controller (APIC) GUI. Beginning with the 5.2(8) and 6.0(3) releases, an SMU patch can modify the Cisco APIC GUI.
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Upgrading or downgrading the software on a switch removes any SMU patches that you previously installed on that switch.