
Chapter 23 Device HA
23.1.1Before You Begin
•Configure a static IP address for each interface that you will have device HA monitor.
Subscribe to services on the backup NXC before synchronizing it with the master NXC.
•Synchronization includes updates for services to which the master and backup NXCs are both subscribed. For example, a backup subscribed to IDP/AppPatrol, but not
23.2 General Device HA Commands
This table lists the general commands for device HA.
Table 92
COMMAND | DESCRIPTION |
show | Displays whether or not device HA is activated, the |
| configured device HA mode, and the status of the |
| monitored interfaces. |
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[no] | Turns device HA on or off. |
Sets the NXC to use | |
| (VRRP group based) device HA. |
23.3 Active-Passive Mode Device HA
Virtual Router
The master and backup NXC form a single ‘virtual router’.
Cluster ID
You can have multiple NXC virtual routers on your network. Use a different cluster ID to identify each virtual router.
Monitored Interfaces in
You can select which interfaces device HA monitors. If a monitored interface on the NXC loses its connection, device HA has the backup NXC take over.
Enable monitoring for the same interfaces on the master and backup NXCs. Each monitored interface must have a static IP address and be connected to the same subnet as the corresponding interface on the backup or master NXC.
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NXC CLI Reference Guide |
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