VifAttachmentContext

{
    "allocate_addresses": "string",
    "resource_type": "string",
    "app_id": "string",
    "bms_interface_config": {
        "app_intf_name": "string",
        "default_gateway": "string",
        "migrate_intf": "string",
        "routing_table": [
            "string"
        ]
    },
    "parent_vif_id": "string",
    "traffic_tag": 0,
    "transport_node_uuid": "string",
    "vif_type": "string"
}