title: Envoy "http_connection_manager" setup issue
body: <p>I am new to the Envoy proxy. I am trying to understand the filters basic config for &quot;<strong>http_connection_manager</strong>&quot;</p>
  <p>I have this code :</p>
  <pre><code>filter_chains:
      - filters:
          - name: envoy.filters.network.http_connection_manager
            typed_config:
              &quot;@type&quot;: type.googleapis.com/envoy.extensions.filters.network.http_connection_manager.v3.HttpConnectionManager
              codec_type: auto
              stat_prefix: ingress_http
  </code></pre>
  <p>I need help in understanding what is the meeting of :</p>
  <ol>
  <li><p><strong>name: envoy.filters.network.http_connection_manager</strong> --- ( I think it is an inbuild HTTP filter of some kind)</p>
  </li>
  <li><p><strong>&quot;@type&quot;:type.googleapis.com/envoy.extensions.filters.network.http_connection_manager.v3.HttpConnectionManager</strong>   --- (I have no idea, what is this )</p>
  </li>
  </ol>
  <p>I tried to understand it from official docs and also read some medium posts, some youtube videos, but still, I have not able to decode the meaning of these lines.</p>
  <p>If somebody has an answer, I will be grateful. even any resource, post or video link, or any kind of info is also appreciated, please share those if possible. thanks</p>