\d+)/', $device['version'], $version); d_echo($version); // specified MIB supported since build 16607 if ($version[build] >= 16607) { $usage = snmp_get($device, 'NMS-MEMORY-POOL-MIB::nmsMemoryPoolUtilization.0', '-OUvQ'); if (is_numeric($usage)) { discover_mempool($valid_mempool, $device, 0, 'pbn-mem', 'Main Memory', '100', null, null); } } }