# File lib/facter/util/vlans.rb, line 4
 4:   def self.get_vlan_config
 5:     output = ""
 6:       if File.exists?('/proc/net/vlan/config') and File.readable?('/proc/net/vlan/config')
 7:         output = File.open('/proc/net/vlan/config').read
 8:       end
 9:     output
10:   end