RabbitMQ

  {kernel, [
    {inet_default_connect_options, [{nodelay, true}]},
    {inet_default_listen_options,  [{nodelay, true}]}
  ]},
  {rabbit, [
    {tcp_listeners, [{"10.1.6.244", 5677}]},
    {vm_memory_high_watermark, 0.7},
    {handshake_timeout, 20000},
    {tcp_listen_options, [
                        {backlog,   4096},
                        {nodelay,   true},
                        {sndbuf,    196608},
                        {recbuf,    196608}
                       ]}
  ]}
].