anchor.diff:              end, Spacings)
       ),
       FilteredNode = rt_entry_node(FilterEntry),
  -    delete_fd(node:pidX(FilteredNode)),
       entry_delete(node:id(FilteredNode), RT)
       .
   
  
positive.code: %-spec add_entry(Node :: node:node_type(), Type :: entry_type(), RT :: rt()) -> rt().
  -spec add_entry(node:node_type(),'normal' | 'source' | 'sticky',rt()) -> rt().
  add_entry(Node, Type, RT) ->
      NewRT = entry_learning_and_filtering(Node, Type, RT),
      update_fd(RT, NewRT),
      NewRT
      .
  
  % @doc Add a sticky entry to the routing table
  
negative.code:             end,
              NewRT
              ;
          false ->
              add_fd(IntermediateRT),
              IntermediateRT
      end
      .
  
  