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PHP
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<?php
if(is_numeric($id) && ($config['allow_unauth_graphs'] || port_permitted($id))) {
$port = get_port_by_id($id);
$device = device_by_id_cache($port['device_id']);
$title = generate_device_link($device);
$title .= " :: Port ".generate_port_link($port);
$auth = TRUE;
$rrd_filename = $config['rrd_dir'] . "/" . $device['hostname'] . "/port-" . safename($port['ifIndex'] . ".rrd");
}
?>