$curl -X POST \ --header 'Content-Type: application/json' \ --user $USER:$PASS \ --insecure \ --data-raw '{"vlan":{"descr":"B","if":"ixl2","pcp":"0","proto":"","vlanif":"ixl2_vlan2","tag":"2"}}' \ "https://192.168.4.189/api/interfaces/vlan_settings/addItem"
{"result":"failed"}