ction_manager.v3.HttpConnectionManager&quot;
          xff_num_trusted_hops: 5
          common_http_protocol_options:
            idle_timeout: 30s
</code></pre>
<p>The following example inserts an attributegen filter
that produces <code>istio_operationId</code> attribute which is consumed
by the istio.stats filter. <code>filterClass: STATS</code> encodes this dependency.</p>
<pre><code class="language-yaml">apiVersion: networking.istio.io/v1alpha3
kind: EnvoyFilter
metadata:
  name: reviews-request-operat