<system.diagnostics>
  <sources>
    <source name="System.Net" tracemode="protocolonly" maxdatasize="32768">
      <listeners>
        <add name="System.Net"/>
      </listeners>
    </source>
  </sources>
  <switches>
    <add name="System.Net" value="Verbose"/>
  </switches>
  <sharedListeners>
    <add name="System.Net" type="System.Diagnostics.TextWriterTraceListener" initializeData="net_trace.log"/>
  </sharedListeners>
  <trace autoflush="true"/>
</system.diagnostics>