# File lib/facter/util/vlans.rb, line 12
12:   def self.get_vlans
13:     vlans = Array.new
14:     if self.get_vlan_config
15:       self.get_vlan_config.each_line do |line|
16:         if line =~ /^([0-9A-Za-z]+)\.([0-9]+) /
17:           vlans.insert(-1, $~[2]) if $~[2]
18:         end
19:       end
20:     end
21: 
22:     vlans.join(',')
23:   end