
NXC CLI Reference Guide
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CHAPTER 23
Device HA
Device HA lets a backup NXC automatically take over if the master NXC fails.
Figure 14 Device HA Backup Taking Over for the Master
In this example, device B is the backup for device A in the event something happens to it and
prevents it from managing the wireless network.
23.1 Device HA Overview
Management Access
You can configure a separate management IP address for each interface. You can use it to
access the NXC for management whether the NXC is the master or a backup. The
management IP address should be in the same subnet as the interface IP address.
Synchronization
Use synchronization to have a backup NXC copy the master NXC’s configuration, signatures
(anti-virus, IDP/application patrol, and system protect), and certificates.
Only NXCs of the same model and firmware version can synchronize.
Otherwise you must manually configure the master NXC’s settings on the backup (by editing
copies of the configuration files in a text editor for example).
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