anchor.diff:             fun() ->
                      not_yet_implemented(),
                      ?TT(?SECS(10)),
  -                   InitState = #{domain => inet6, timeout => 5000},
  +                   InitState = #{domain        => inet6,
  +                                 backlog       => 1,
  +                                 timeout       => 5000,
  +                                 connect_limit => 3},
                      ok = api_to_connect_tcp(InitState)
              end).
   
  
positive.code:          %% *** Wait for start order part ***
           #{desc => "await start (from tester)",
             cmd  => fun(State) ->
                             Tester = ?SEV_AWAIT_START(),
                             {ok, State#{tester => Tester}}
                     end},
           #{desc => "monitor tester",
             cmd  => fun(#{tester := Tester} = _State) ->
  
negative.code:                            end
                     end},
           #{desc => "make listen socket (with backlog = 1)",
             cmd  => fun(#{lsock := LSock, backlog := Backlog}) ->
                             socket:listen(LSock, Backlog)
                     end},
           #{desc => "announce ready (init)",
             cmd  => fun(#{tester := Tester, lport := Port}) ->
  