This article provides the steps to configure out-of-band management access on a chassis cluster.

To configure out-of-band management access on a chassis cluster, you need to set up the FXP interface under the node-specific group as shown below:

set groups node0 interfaces fxp0 unit 0 family inet address <ip address/mask>  ## This sets Device A's management IP address on the fxp0 interface.
set groups node1 interfaces fxp0 unit 0 family inet address <ip address/mask> ## This sets Device B's management IP address on the fxp0 interface.
set apply-groups "${node}"

However, to ensure both nodes' FXP interfaces are accessible, a backup router is needed because the routing process does not run on the secondary node. Without the backup router configuration, only the primary node’s FXP interface will be accessible according to the configured routing. To configure the backup router to access the secondary node through FXP, use the following commands:

set groups node0 system backup-router <next-hop/gateway>
set groups node0 system backup-router destination <trusted source subnet/mask> ## This command configure the trusted source subnets used to access FXP interfaces.
set groups node1 system backup-router <next-hop/gateway>
set groups node1 system backup-router destination <trusted source subnet/mask>  ## This command configure the trusted source subnets used to access FXP interfaces.

Additionally, you can use the HA Configuration Generator to create the cluster configuration. Follow this link to generate the configuration: HA Configuration Generator