my $bandwidth =  $xml->{exec_command}->{xml_show_result}->{xml_show_resource_usage}->{ru_entry}->{bandwidth}->{ru_current};

##</code><code>##

my $bandwidth =  $xml->{exec_command}->{xml_show_result}->{xml_show_resource_usage}->{ru_entry}->{'bandwidth           '}->{ru_current};

##</code><code>##

my $xml = XMLin($tmpfile, ForceArray => 0, SuppressEmpty => 1, KeyAttr => 'ru_resource', NormaliseSpace => 1 );