librenms-librenms/includes/discovery/sensors/dbm/fabos.inc.php

<?php

$fabosSfpRxPower = snmpwalk_array_num($device, '.1.3.6.1.4.1.1588.2.1.1.1.28.1.1.4'); // FA-EXT-MIB::swSfpRxPower
$fabosSfpTxPower = snmpwalk_array_num($device, '.1.3.6.1.4.1.1588.2.1.1.1.28.1.1.5'); // FA-EXT-MIB::swSfpTxPower
if (! empty($fabosSfpRxPower) || ! empty($fabosSfpTxPower)) {
    $ifDescr = snmpwalk_group($device, 'ifDescr', 'IF-MIB', 0)['ifDescr'] ?? [];
    $ifAdminStatus = snmpwalk_group($device, 'ifAdminStatus', 'IF-MIB', 0)['ifAdminStatus'] ?? [];
}

foreach ($fabosSfpRxPower as $oid => $entry) {
    foreach ($entry as $index => $current) {
        if (is_numeric($current)) {
            $ifIndex = $index + 1073741823;
            if ($ifAdminStatus[$ifIndex] == '1') {
                discover_sensor(
                    $valid['sensor'],
                    'dbm',
                    $device,
                    ".$oid.$index",
                    'swSfpRxPower.' . $index,
                    'brocade',
                    makeshortif($ifDescr[$ifIndex]) . ' RX',
                    1,
                    1,
                    -5,
                    null,
                    null,
                    0,
                    $current,
                    'snmp',
                    $ifIndex,
                    'ports',
                    null,
                    'Receive Power'
                );
            }
        }
    }
}

foreach ($fabosSfpTxPower as $oid => $entry) {
    foreach ($entry as $index => $current) {
        if (is_numeric($current)) {
            $ifIndex = $index + 1073741823;
            if ($ifAdminStatus[$ifIndex] == '1') {
                discover_sensor(
                    $valid['sensor'],
                    'dbm',
                    $device,
                    ".$oid.$index",
                    'swSfpTxPower.' . $index,
                    'brocade',
                    makeshortif($ifDescr[$ifIndex]) . ' TX',
                    1,
                    1,
                    -5,
                    null,
                    null,
                    0,
                    $current,
                    'snmp',
                    $ifIndex,
                    'ports',
                    null,
                    'Transmit Power'
                );
            }
        }
    }
}