. * * @package LibreNMS * @link http://librenms.org * @copyright 2017 Neil Lathwood * @author Neil Lathwood */ $perc = snmp_get($device, 'swMemUsage.0', '-Ovq', 'SW-MIB'); if (is_numeric($perc)) { $mempool['total'] = 100; $mempool['used'] = $perc; $mempool['free'] = ($mempool['total'] - $mempool['used']); }