{
  "primary_backup_settings": {
    "enabled": true,
    "primary_switch_timeout_ms": 5000,
    "heartbeat_interval_ms": 1000,
    "failure_detection_timeout_ms": 5000,
    "auto_failover_enabled": true,
    "primary_recovery_keep_backup": false,
    "heartbeat_miss_threshold": 5
  },
  "controllers": [
    {
      "id": 1,
      "sn": "21883100017D",
      "name": "Controller-Primary",
      "role": "primary",
      "priority": 0,
      "mac": "00:11:22:33:44:55",
      "ip": "192.168.25.3",
      "enabled": true
    },
    {
      "id": 2,
      "sn": "21883000AAA",
      "name": "Controller-Backup",
      "role": "backup",
      "priority": 1,
      "mac": "00:11:22:33:44:56",
      "ip": "192.168.25.10",
      "enabled": true
    }
  ]
}