  <p>
   Measures the reliability of the target only in its ability to
   respond to connections: the display indicates the number of
   successful connections, the total number of attempted connections
   and the percentage of successful connections.
  </p>
  <p>
   For example, reliability of
   <tt>9/15&nbsp;=&nbsp;60%</tt>
   indicates that fifteen attempts have been made to connect to the
   server, of which nine (60%) have been successful.
  </p>