e></td>
<td>
<p>Upgrade the connection to http2.
This opt-in option overrides the default.</p>

</td>
</tr>
</tbody>
</table>
</section>
<h2 id="OutlierDetection">OutlierDetection</h2>
<section>
<p>A Circuit breaker implementation that tracks the status of each
individual host in the upstream service.  Applicable to both HTTP and
TCP services.  For HTTP services, hosts that continually return 5xx
errors for API calls are ejected from the pool for a pre-defined period
of time. For TCP services, connection ti