foreach my $id (sort keys %{$vnet_cfg->{ids}}) {
my $vnet = $vnet_cfg->{ids}->{$id};
my $zone = $vnet->{zone};
- next if !$zone;
+ next if !defined($zone);
my $plugin_config = $zone_cfg->{ids}->{$zone};
next if defined($plugin_config->{nodes}) && !$plugin_config->{nodes}->{$nodename};