my $ifTable = $session->gettable('ifTable',noindexes=>1);
foreach my $key (keys %$ifTable) {
 foreach my $inkey (keys %{$ifTable->{$key}}) {
  print "Schluessel $key, Unterschluessel $inkey, Wert " . $ifTable->{$key}->{$inkey} . "\n";
 }
}