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 anti-virus, gets IDP/AppPatrol updates from the master, but not anti-virus updates. It is highly recommended to subscribe the master and backup NXCs to the same services.

23.2 General Device HA Commands

This table lists the general commands for device HA.

Table 92 device-ha General Commands

COMMAND

DESCRIPTION

show device-ha status

Displays whether or not device HA is activated, the

 

configured device HA mode, and the status of the

 

monitored interfaces.

 

 

[no] device-ha activate

Turns device HA on or off.

device-ha mode {active-passive}

Sets the NXC to use active-passive or legacy

 

(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 Active-Passive Mode Device HA

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