ndexterm" name="boost_asio.indexterm.basic_stream_socket.protocol_type"></a> 
The
          protocol type.
        </p>
<pre class="programlisting">typedef Protocol protocol_type;
</pre>
<h6>
<a name="boost_asio.reference.basic_stream_socket.protocol_type.h0"></a>
          <span class="phrase"><a name="boost_asio.reference.basic_stream_socket.protocol_type.requirements"></a></span><a class="link" href="protocol_type.html#boost_asio.reference.basic_stream_socket.protocol_type.requirements">Requirements</a>
