vref may be set by node running getslivers -> getslicefamily -> setslicevref
vref may be set by node running getslivers -> getslicefamily -> setslicevref

dreibh/planetlab-lxc-plcapi,dreibh/planetlab-lxc-plcapi,dreibh/planetlab-lxc-plcapi,dreibh/planetlab-lxc-plcapi