if (isset($data['ochOsDGD']) && is_numeric($data['ochOsDGD']) && $data['ochOsDGD'] != 0) {
        $descr = $data['portAlias'] . ' Differential Group Delay';
        $oid = '.1.3.6.1.4.1.42229.1.2.4.1.19.1.1.22.' . $index;
        $value = $data['ochOsDGD'];
        $divisor = 1000000000000;