Cisco Cisco Firepower Management Center 4000

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FireSIGHT System User Guide
 
Chapter 6      Managing Devices 
  Clustering Devices
Step 3
Click 
Yes
 to confirm maintenance mode or click 
No
 to cancel.
Step 4
Click the toggle maintenance mode icon (
) again to bring the device out of maintenance mode.
Replacing a Device in a Clustered Stack
License: 
Control
Supported Devices: 
Series 3
After you place a stack that is a cluster member into maintenance mode, you can replace a secondary 
device in the stack for another device. You can only select devices that are not currently stacked or 
clustered. The new device must follow the same guidelines for establishing a device stack. See 
.
To replace a device in a clustered stack:
Access: 
Admin/Network Admin
Step 1
Select 
Devices > Device Management
.
The Device Management page appears.
Step 2
Next to the stack member you want to place into maintenance mode, click the toggle maintenance mode 
icon (
).
The Confirm Maintenance Mode pop-up window appears.
Step 3
Click 
Yes
 to confirm maintenance mode or click 
No
 to cancel.
Step 4
Click the replace device icon (
).
The Replace Device pop-up window appears.
Step 5
Select the 
Replacement Device
 from the drop-down list.
Step 6
Click 
Replace
 to replace the device or click 
Cancel
 to keep the current device and return to the Device 
Management page.
Step 7
Click the toggle maintenance mode icon (
) again to bring the stack immediately out of maintenance 
mode.
You do not need to reapply the device configuration.
Establishing Clustered State Sharing
License: 
Control
Supported Devices: 
Series 3
Clustered state sharing allows clustered devices or clustered stacks to synchronize as much state as 
necessary, so that if either device or stack fails, the other peer can take over with no interruption to traffic 
flow. Without state sharing, the following features may not fail over properly:
  •
Strict TCP enforcement
  •
Unidirectional access control rules