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my $bandwidth = $xml->{exec_command}->{xml_show_result}->{xml_show_re +source_usage}->{ru_entry}->{bandwidth}->{ru_current};
my $bandwidth = $xml->{exec_command}->{xml_show_result}->{xml_show_re +source_usage}->{ru_entry}->{'bandwidth '}->{ru_current};
my $xml = XMLin($tmpfile, ForceArray => 0, SuppressEmpty => 1, KeyAttr + => 'ru_resource', NormaliseSpace => 1 );