Cisco Cisco Firepower Management Center 4000 Release Notes

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Version 5.2.0.1
Sourcefire 3D System Release Notes
16
Uninstalling the Update
To ensure continuity of operations, uninstall the update from clustered devices 
and paired Defense Centers one at a time. First, uninstall the update from the 
secondary appliance. Wait until the uninstallation process completes, then 
immediately uninstall the update from the primary appliance.
WARNING!
If the uninstallation process on a clustered device or paired Defense 
Center fails, do not restart the uninstall or change configurations on its peer. 
Instead, contact Support.
Uninstalling the Update from Stacked Devices
All devices in a stack must run the same version of the Sourcefire 3D System. 
Uninstalling the update from any of the stacked devices causes the devices in 
that stack to enter a limited, mixed-version state. 
To minimize impact on your deployment, Sourcefire recommends that you 
uninstall an update from stacked devices simultaneously. The stack resumes 
normal operation when the uninstallation completes on all devices in the stack.
Uninstalling the Update from Clustered Stacks
All devices in a clustered stack must run the same version of the Sourcefire 3D 
System. Uninstalling the update from any of the clustered, stacked devices 
causes the devices in that stack to enter a limited, mixed-version state. 
To minimize impact on your deployment, Sourcefire recommends that you 
uninstall the update from all devices in a stack simultaneously. First, uninstall the 
update from the devices in the secondary clustered stack. Wait until the 
uninstallation process completes, then immediately uninstall the update from the 
devices in the primary clustered stack.
Uninstalling the Update from Devices Deployed Inline
Managed devices do not perform traffic inspection, switching, routing, NAT, VPN, 
or related functions while the update is being uninstalled. Depending on how your 
devices are configured and deployed, the uninstallation process may also affect 
traffic flow and link state. For more information, see 
Uninstalling the Update and Online Help
Uninstalling the Version 5.2.0.1 update does not revert the online help to its 
previous version. If the version of your online help does not match that of your 
Sourcefire 3D System, your online help may contain documentation for 
unavailable features and may have problems with context sensitivity and link 
functionality.