librenms-librenms/includes/discovery/mempools/sonicwall.inc.php

<?php
/*
 * LibreNMS SonicWALL CPU information module
 *
 * Copyright (c) 2015 Mark Nagel <mnagel@willingminds.com>
 * This program is free software: you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as published by the
 * Free Software Foundation, either version 3 of the License, or (at your
 * option) any later version.  Please see LICENSE.txt at the top level of
 * the source code distribution for details.
 */

if ($device['os'] == 'sonicwall') {
    echo 'SonicWALL-MEMORY-POOL: ';
    $usage = snmp_get($device, 'SONICWALL-FIREWALL-IP-STATISTICS-MIB::sonicCurrentRAMUtil.0', '-Ovq');
    if (is_numeric($usage)) {
        discover_mempool($valid_mempool, $device, 0, 'sonicwall-mem', 'Memory Utilization', '100', null, null);
    }
}