anchor.diff:                       actions =
                            [#ofp_action_set_field{
                                field = #ofp_field{name = eth_src,
  -                                                value = <<1,2,3,4,5,6>> }}]}]},
  +                                                value = <<1,2,3,4,5,6>> }},
  +                          #ofp_action_set_field{
  +                             field = #ofp_field{class = {experimenter, onf},
  +                                                name = pbb_uca,
  +                                                value = <<1:1>> }}]}]},
           #ofp_flow_mod{
               cookie = <<0,0,0,0,0,0,0,0>>,
               cookie_mask = <<0,0,0,0,0,0,0,0>>,
  
positive.code:                      match = #ofp_match{fields = []},
                       instructions =
                           [#ofp_instruction_write_actions{
                                actions =
                                    [#ofp_action_output{
                                         port = controller,
  
negative.code:              class = openflow_basic,name = ipv6_exthdr,
               has_mask = false,
               value = <<500:9>>,
               mask = undefined},
           #ofp_field{
               class = {experimenter, onf},name = pbb_uca,
               has_mask = false,
               value = <<1:1>>,
               mask = undefined}
      ],
      List = [
  