librenms/includes/discovery/mempools/aos-device.inc.php

<?php

if ($device['os'] == 'aos') {
    echo 'Alcatel-Lucent OS: ';

    $total   = snmp_get($device, 'systemHardwareMemorySize.0', '-OvQ', 'ALCATEL-IND1-SYSTEM-MIB', '+'.$config['install_dir'].'/mibs/aos');
    $percent = snmp_get($device, 'healthDeviceMemoryLatest.0', '-OvQ', 'ALCATEL-IND1-HEALTH-MIB', '+'.$config['install_dir'].'/mibs/aos');
    $used    = ($total / 100 * $perc_used);
    $free    = ($total - $used);

    if (is_numeric($total) && is_numeric($used)) {
        discover_mempool($valid_mempool, $device, 0, 'aos-device', 'Device Memory', '1', null, null);
    }
}