anchor.diff:  
   counter_entries() ->
       [
  -     {[bytes, received, last_sec], fast_counter, [{function, {?MODULE, fc_bytes_received}} ,{snmp, []}]},
  +     {[bytes, received, last_sec], counter, [{snmp, []}]},
        {[bytes, received, last_10sec], counter, [{snmp, []}]},
        {[bytes, received, last_30sec], counter, [{snmp, []}]},
        {[bytes, received, last_min], counter, [{snmp, []}]},
        {[bytes, received, last_5min], counter, [{snmp, []}]},
   
  -     {[bytes, sent, last_sec], fast_counter, [{function, {?MODULE, fc_bytes_sent}} ,{snmp, []}]},
  +     {[bytes, sent, last_sec], counter, [{snmp, []}]},
        {[bytes, sent, last_10sec], counter, [{snmp, []}]},
        {[bytes, sent, last_30sec], counter, [{snmp, []}]},
        {[bytes, sent, last_min], counter, [{snmp, []}]},
        {[bytes, sent, last_5min], counter, [{snmp, []}]},
   
  -     {[messages, received, last_sec], fast_counter, [{function, {?MODULE, fc_messages_received}} ,{snmp, []}]},
  +     {[messages, received, last_sec], counter, [{snmp, []}]},
        {[messages, received, last_10sec], counter, [{snmp, []}]},
        {[messages, received, last_30sec], counter, [{snmp, []}]},
        {[messages, received, last_min], counter, [{snmp, []}]},
        {[messages, received, last_5min], counter, [{snmp, []}]},
   
  -     {[messages, sent, last_sec], fast_counter, [{function, {?MODULE, fc_messages_sent}} ,{snmp, []}]},
  +     {[messages, sent, last_sec], counter, [{snmp, []}]},
        {[messages, sent, last_10sec], counter, [{snmp, []}]},
        {[messages, sent, last_30sec], counter, [{snmp, []}]},
        {[messages, sent, last_min], counter, [{snmp, []}]},
        {[messages, sent, last_5min], counter, [{snmp, []}]},
   
  -     {[publishes, dropped, last_sec], fast_counter, [{function, {?MODULE, fc_publishes_dropped}} ,{snmp, []}]},
  +     {[publishes, dropped, last_sec], counter, [{snmp, []}]},
        {[publishes, dropped, last_10sec], counter, [{snmp, []}]},
        {[publishes, dropped, last_30sec], counter, [{snmp, []}]},
        {[publishes, dropped, last_min], counter, [{snmp, []}]},
        {[publishes, dropped, last_5min], counter, [{snmp, []}]},
   
  -     {[publishes, received, last_sec], fast_counter, [{function, {?MODULE, fc_publishes_received}} ,{snmp, []}]},
  +     {[publishes, received, last_sec], counter, [{snmp, []}]},
        {[publishes, received, last_10sec], counter, [{snmp, []}]},
        {[publishes, received, last_30sec], counter, [{snmp, []}]},
        {[publishes, received, last_min], counter, [{snmp, []}]},
        {[publishes, received, last_5min], counter, [{snmp, []}]},
   
  -     {[publishes, sent, last_sec], fast_counter, [{function, {?MODULE, fc_publishes_sent}} ,{snmp, []}]},
  +     {[publishes, sent, last_sec], counter, [{snmp, []}]},
        {[publishes, sent, last_10sec], counter, [{snmp, []}]},
        {[publishes, sent, last_30sec], counter, [{snmp, []}]},
        {[publishes, sent, last_min], counter, [{snmp, []}]},
        {[publishes, sent, last_5min], counter, [{snmp, []}]},
   
  -     {[connects, received, last_sec], fast_counter, [{function, {?MODULE, fc_connects_received}} ,{snmp, []}]},
  +     {[connects, received, last_sec], counter, [{snmp, []}]},
        {[connects, received, last_10sec], counter, [{snmp, []}]},
        {[connects, received, last_30sec], counter, [{snmp, []}]},
        {[connects, received, last_min], counter, [{snmp, []}]},
  
positive.code: 
  incr_item(Entry, Val) ->
      exometer:update_or_create(Entry ++ ['last_sec'], Val).
  
  fc_bytes_received() -> ok.
  fc_bytes_sent() -> ok.
  fc_messages_received() -> ok.
  fc_messages_sent() -> ok.
  fc_publishes_dropped() -> ok.
  fc_publishes_received() -> ok.
  fc_publishes_sent() -> ok.
  fc_connects_received() -> ok.
  fc_cluster_bytes_received() -> ok.
  fc_cluster_bytes_sent() -> ok.
  fc_cluster_bytes_dropped() -> ok.
  
  entries() ->
      {ok, entries(undefined)}.
  
negative.code:          entries/0,
           entries/1]).
  
  %% API functions
  -export([start_link/0,
           system_statistics/0,
  