anchor.diff:               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 = [
  
positive.code:                      match = #ofp_match{fields = []},
                       instructions =
                           [#ofp_instruction_write_actions{
                                actions =
                                    [#ofp_action_output{
                                         port = controller,
  
negative.code:                      actions =
                           [#ofp_action_set_field{
                               field = #ofp_field{name = eth_src,
                                                  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>>,
  