Placing a High-Availability Peer into Maintenance Mode
Access
Supported Domains
Supported Devices
Classic License
Smart License
Admin/Network
Admin
Any
7000 & 8000 Series
Control
N/A
After you establish a 7000 or 8000 Series device high-availability pair, you can manually trigger failover by
placing one of the peers into maintenance mode to perform maintenance on the devices. In maintenance mode,
the system administratively takes down all interfaces except for the management interface. After maintenance
is completed, you can re-enable the peer to resume normal operation.
You should not place both peers in a high-availability pair into maintenance mode at the same time. Doing
so will prevent that pair from inspecting traffic.
Note
Procedure
Step 1
Choose
Devices
>
Device Management
.
Step 2
Next to the peer you want to place in maintenance mode, click the toggle maintenance mode icon (
).
Step 3
Click
Yes
to confirm maintenance mode.
What to do next
• When maintenance is complete, click the toggle maintenance mode icon (
) again to bring the peer out
of maintenance mode.
Replacing a Device in a Stack in a High-Availability Pair
Access
Supported Domains
Supported Devices
Classic License
Smart License
Admin/Network
Admin
Any
Firepower 8140,
8200 family, 8300
family
Control
N/A
After you place a stack that is a member of a high-availability pair 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 paired. The new device must follow the same guidelines for establishing a device stack.
7000 and 8000 Series Device High Availability
10
7000 and 8000 Series Device High Availability
Placing a High-Availability Peer into Maintenance Mode
